Making Tail Loops for Custom Motorcycles

Making Tail Loops for Custom Motorcycles

We’ve been making frame loops up for quite  a few years now for custom applications on Cafe Racer frames, subframes etc. In this time we’ve made several dies to make this job easier.

Here’s a vid of how we make the dies.

When an order for a loop comes through we are able to make them same day like this:

Making lugs to fit inside the frame and loop

Unfortunately for us Australia doesn’t have the same access to imperial sized tubing that America does. We have struggled to find tubing that we can use for lugs when welding loops to frames. Not only is it impossible to source the snug fit needed for the loop in just about every case the frame inner tube diameter is different to the loop inner diameter.

Here’s what can be done with the enough time and energy.

  1. Find a suitable solid round bar and cut 2 pieces 60mm long
  2. Using a metal lathe bring the entire outer diameter down so it fits the larger of the inner diameters of the loop of frame
  3. Now make a step in the stock by using the lathe to turn down approx 30mm of the stock to the smaller of the inner diameters.

That’s the best way but there is another way which is a lot less time consuming and will do the job.

  1. Cut 2 sections 40mm long off an existing loop. (equal amounts each side rather than both off one side for obvious reasons)
  2. along the length of the offcuts use a cutting disc to take out approx 5mm of the long edge
  3. Now you can use a vice/hammer/clamp etc to shrink the diameter of the tube so it can fit inside the frame loop
  4. Further modifications may be needed to make it fit inside the frame but you get the idea

Get Cutting!!!!


p.s. Here’s the page on our site if you want to order one of our loops..

We Like Modern Bobber Builds



We Like Modern Bobber Builds!!

How many people have we pissed off already just with the title? I know what the purists are thinking..

  1. It’s an oxymoron
  2.  Therefore you are an oxygen burning moron
  3. If it has shocks then it isn’t a true bobber
  4. Kicking a bike into life is the only way to go
  5. What?! You didn’t spend 100 hours building up that motor. Go away!

Yeah and in truth I may have said these things to myself as well but.. hear us out. Most people out there love the look of a gorgeous bobber. Maybe they don’t want to wait 6 months for it to be built. Then there’s the shame of stalling at the lights when you were trying to impress that girl in the Hyundai beside you and having to kick the bitch back into life!

Whatever it is, modifying a late model cruiser is an alternative. We’ve done a few and it has to be said that the ease, budget and timeframe all make it a novelty for us.

We had just such a customer come to us recently. Andrew had moved on from his LAMS and was wanting something that would eat the km’s while still looking the part.  A fairly clean XVS1100 was found for the right price and minimal damage to the exhaust (first thing to go anyway) so we snapped it up for him and he showed us pics of what he had in mind.


Candy apple red, whitewall tyres and some straight bars were the order of the day. Of course lowering the bike and doing something about the guards was always going to happen as well.


We make lots of kits up for the XVS650 and it didn’t take much modifying to transplant the guards from one of these to work with the 1100. We needed to do this first as the paint is what tends to hold us up on these builds.

Once we made the guards out of steel, it was time to strip everything else off the bike and make the three piles. Chrome, Candy and Black. The candy went to our painters and the Black to the local powdercoaters. As it was only a couple of pieces that needed chroming we thought we’d polish them oursleves in house to make sure everything could go back together in a  timely fashion.2

The seat we had earmarked for the bike was a no go after we got it on there and realised it looked ridiculously thin compared to the oversized tank so it came down to a Stock Heist seat or one of the fat Biltwell seats.


Whitewall tyres went on next. The old ones were no longer roadworthy so it’s not like it was a waste. unfortunately there is only one company that makes 19 inch whitewalls and we couldn’t match the tread to the back but it wasn’t unusual to have un matched tread patterns when I was growing up anyway;)

Now the only hold up (and believe me it was a proper hold up) was the paint this time around. Our two week turn around became a 5 week turnaround due to holidays etc so we were stuck dragging this heavy lump of lead around until we got the call we had been waiting for. Within hours everything was back together.


We hadn’t shown Andrew the bike during this period. He was good enough to trust us with the small things and see we wanted to make it worthwhile. When he arrived he was stoked. Even at 5 weeks we had managed to deliver a bike that sounded awesome thanks to some straight pipes we made up for it as well as handle the road and absorb ‘most’ of the bumps that came his way. It’s still not a light bike but the stand over height has been improved and the motor with a touch under 40k on it has plenty of life left in it.


Time to take it for it’s first road test. The bike felt a lot lighter than when we started. Maybe that’s just psychological?! lol. The front end definitely tracked better and helped with the lighter feel though. The pipes are loud! A couple of extra baffles meant that it took the edge off it though so longer rides were a lot more enjoyable. Overall the impression I got from this bike was it was more than enough. Don’t get me wrong. I have a 1584cc Harley as well as a couple of 1100’s, 1200’s and even a 1400 Suzuki in the shed. This bike though with it’s single seat and low slung ride height felt like a rocket ship. Maybe it’s because most of our Bobbers are around the 650cc size that this one just swallows up the kilometres like a champion.

Overall a very happy customer and a bike that we would ride long after most hardtails were left behind.


(thanks to Andrew for the pics)



We guarantee the best price on all POSH parts for your Custom

We guarantee the best price on all POSH parts for your Custom

As most of you know we have been in partnership for many years with POSH Japan. Our goal has been to offer the biggest range at competitive prices. We’ve achieved both these things although occasionally customers ask us for something that we don’t have and we are able to include into our catalogue.

We want you to do our work for us now though. If you find anyone in Australia selling POSH parts at a better price than what we offer (only new and not including postage obviously) let us know and we will drop our catalogue price for all of our customers.


Best price guaranteed

Awesome Japanese quality

We get to practice our Japanese more

You do our market research


You have to think of other parts to spend hours online shopping for now!

Check out our online catalogue here

VX800 Commazuki Build





VX800 Commazuki Build

We could go on about what Suzuki was thinking when they made this bike. To be honest it’s not the worst looking bike they ever made (arguably the GSXF wins that title.. don’t even bother looking it up)

Occsaionally even in this market barn finds make their way to us. An old CB750 or KZ etc. still with race gear all over it that we get to dust down and ogle over. A customer of ours brought his rolling dust hill to us so we thought we might have something quite exciting.

Once the cobwebs were cleared away we found an ordinary looking VX800 in standard trim that hadn’t been ridden for many years. We could go on about what Suzuki was thinking when they made this bike. To be honest it’s not the worst looking bike they ever made (arguably the GSXF wins that title.. don’t even bother looking it up). The idea of transplanting their successful cruiser 800 motor into a road bike and giving it a longer lower stance then most was bucking the trend.. but sometimes trends are trends for a reason!

So the first thing was to get it running. Naturally the carbs were gunked up with something that could have easily come from a 70’s horror movie. Once they were sorted and brakes rebuilt we had something that would at least roll down the road. Turns out it didn’t just roll down the road it picked up with quite a bit of torque. More than our metal fab guy Josh was expecting. All this low down power perfect for rolling ont he throttle and pushing through curves etc.. exactly what we like!img_7108

Next thing was the strip down to see where the bare lines were. With about 20 kilo’s taken off and that ugly exhaust we started getting a feeling for what we wanted to achieve. So we mutated a back end we have used on some old cafe builds to the side panels of the existing bike. Nobody (I hope) likes that look of parts thrown onto a bike and looking totally out of place so we had to integrate the lines that match the tank etc to a much smaller, lighter back end. It was about now when the customer came to us with pics of a few different bikes he had been perving on for some time. Amongst them was this back end from a Norton. Normally the exhausts look heavy and too long for our bikes but this time it would fit what we were trying to achieve.


Exhaust sorted and electrics underway. Around the workshop we always give our bikes nick names. Most are favourable… some are not. This one became the ‘Commazuki’ and while chatting about it over a drink with the owner I let the name slip out. Definitely not the lines of a Norton Commando or a Suzuki but the name stuck and next thing the purple ‘phantom’ paint job was ditched for something a little more traditional. in Black and our own gold mix.


Airbox was removed and pods put on to save weight and getting the motor breathing easier and low and behold even with the new exhaust the bike ran better. Anyone who seriously mucks around with Suzuki’s knows how asthmatic they can be and how much better they perform when let breathe properly.

Time for a trip to the dyno where we found out the front was lean and the back super rich. Now we have a nice fat torque curve and another 15% on top. Add the weight savings and we are in rider heaven again.

Final touches are the indicators and new tyres and the new owner Heath has a very unique bike that turns heads everywhere he rides.

Custom SR400 running around Brisbane Streets


Custom SR400 running around Brisbane Streets

we would rather wrap gum boots to the rims and baste ourselves in vaseline during a torrential rainfall then put a set on a daily rider.


Recently we had a call from a guy chasing an SR400. To be honest it sounded terrible. There were plenty of modifications necessary, it was to a deadline and he already saw a bike that he wanted to borrow heavily from. Having said that, we did just have a container of bikes come in from Japan and even though we weren’t even 100% sure on what had made it into the container we thought there would be an SR that might be a good starting point. We worked out a budget and realised we could do everything he wanted for less money than it would cost for a new stock SR.

The deadline was a big national ride coming up with all proceeds going to Prostate cancer research and the customer really wanted to do the ride with his long time friend who has been diagnosed with cancer recently. We can’t think of a better reason to help get a guy on the road and it had been a few months since we did a pre-fuel injected SR.

First up the strip back including getting the motor out and painting/polishing. The bike we chose for the donor had an aftermarket hotdog pipe on it and air pod from Japan. It seemed to run ok but later we found out that the bike had still had the standard jets in it.

Most of the parts on this bike are off the shelf. Posh make the headlight and bracket as well as indicators and indicator brackets. Maybe not totally cafe racer style but at this stage there were plans afoot (more on on this later). We also stock the guards and the seat is a Mostyn one so overall we thought it could be done in time for the ride. Anyone into SR’s knows how many aftermarket options there are for them and with our catalogue of over 250 parts specifically for SR400 and SR500’s we might even have breathing room.


Turns out we didn’t have to worry as even the tank was one of ours and within a week of us getting the bike on the hoist, we had it in it’s current form. The notable exception were the tyres. Chester really liked the look of Firestones but unless the bike is only for display purposes we would rather wrap gum boots to the rims and baste ourselves in vaseline during a torrential rainfall then put a set on a daily rider. Instead we heard Shinko had bought out a new ‘classic’ tyre and it handled better and still had that look he loved. We did have to wait for them to come into the country but it was well and truly worth it.


 Now that the new exhaust and manifold were on the bike and we had the air inlet the way we wanted it was time to see how she went. Average is about the best you could say. We never need much of an excuse to get one of our bikes on our state of the art dyno so that is precisely what we did. Turns out it was mega rich except at idle. Plenty of cursing and a couple of changes later we had a smooth power line running with a perfect mixture right from idle. We got so much more top end out of it, I have no doubts this one could join the ‘ton up’ club!

Initially the idea was to fix this one up for the one ride (just cafe racer enough) and then do a proper pull down and make a hardtail SR that would go like a cut snake. After Chester rode it there was a slight change of heart and now it looks like this one will stay as it is and another SR or XS will be sourced to do the hardtail conversion. Check out our facebook page for that update:)


If you want something similar or want to know more about this (don’t bother asking about jetting as we’ll take this info to our graves hahaha) hit us up on our contact page or through any of our social media pages.

Our Custom Build Page

“You’re only limited by your imagination!”


Mostyn Wild

This build is one in a series of Braaap Mercury builds we are doing.

The 'Wild' includes:

  • Whitewall tyres
  • Custom paint
  • Airbox removal
  • Custom seat
  • Different handlebars/graip and mirrors
  • price: $7000.00
Mostyn Envy

The Mostyn Envy is one of our favourite Cafe Racer builds to date. The call was for a british racing green 'but in metallic'. The chocolate diamond stitch seat works really well with the colour.

The upgraded carb meant we were able to clean out the space where the airbox would have been and get another 10% performance out of the bike. Small touched like the headlight grill, bars and mirrors just finish it off.


Mostyn Mild

Mostyn Mercury ‘Mild’   Introducing the dapper gentleman motorcycle in our range of Mercurys. The Mostyn ‘Mild’ is a brand new Motorcycle designed right here in Australia.   Features of this great bike include:

  • Shinko Whitewall tyres
  • Café Racer Looks
  • Bar-end mirrors
  • Chrome Guards,
  • Flat Handlebars
  • 250cc motor
  • This whole package is available right now for $5500.00

This CB550/4 started off life as a quazi bobber with questionable characteristics. What we ended up with is a light and growly machine that had no troubles in the twisties and looks great standing still.




This is an SR500 that has been chopped at the back. Unlike a lot of our bobbers, this one kept some rear suspension for a slightly easier ride. Very low and very loud. An absolute pleasure to ride.

Jailbird CX500

The jailbird started life out as a late model CX500. We dropped the back and made custom fenders up. We also changed all the lights to our 'slotted' range. the airbox was removed and airpods installed. The 2 into 1 exhaust was ceramic coated and the custom seat was made in-house to get that low profilefeeling. in total we removed 30kg's off the CX and the satin black paint job finished it off.

XS650 Hardtail

This is how a lot our XS650/Triumph builds start. this jig allows us to get the frames millimetre perfect. From here we mock up the build before pull down and final paints etc. Notice the ability to extend/shorten the back end as well as change the head angle.



Interest Free Finance available on all Motorcycles at Mostyn

Interest Free Finance available on all Motorcycles at Mostyn

Motorcycles are cool. Our motorcycles are cooler. Getting one NOW is coolerer (yes it’s a word in our dictionary haha). So how can we make this happen?

The boys in our finance kitchen have been working hard to land a deal for any of our customers wanting to purchase a bike on finance. With recent changes we can now offer you low interest and 6 months interest free terms available.

What does this mean for you? Come in and check our range of bikes. We can put a quote together with any modifications and/or gear you need and in most cases have you approved within 30 minutes



Snapchat Directory for Motorcycle Enthusiasts

Snapchat Directory for Motorcycle Enthusiasts

What’s the difference between Motorcycle shops 15 years ago to now? We think there shouldn’t be too much.. unfortunately we might be a minority.

It seems that there’s more and more workshops with a cafe attached, winter wear/summer wear, surfboard racks, skateboards, restaurants, barbers and tattooists to name a few. It makes sense in a way. The more motorcycle shops there are, the more it’s necessary to branch out to find supplementary incomes to keep the doors open.

One change we have got on board with is Snapchat. Even if you think it’s purely a way to hide your dirty messages from your partner, it has become the fastest growth social media platform ever.

So why do we want to put together a directory of decent Motorcycle Snapchat accounts to follow? Think of it like this. Facebook and Youtube are like a Jackie Chan movie. Lot’s of great stunts, plenty of action and a good way to spend an hour and a half (if you are like my kids). Now think of Snapchat as the outtakes at the end of the movie. 10 second snippets of what is really going on behind the scenes. Hopefully the good and bad. It’s a way to strip back the rubbish that makes everything look easy and instead show the ‘back end’ of a business/person (not just in the motorcycle industry).


That’s the way we are looking at it anyway. So if you know of a great Snapchat account let us know and we will include it here.







Braaap Release New Cafe Racers

Braaap Release New Cafe Racers

With the warm weather coming there’s a whole new range of Cafe Racers coming from Braaap.

There have been many changes since the Mercury 250cc Cafe Racer was released 2 years ago. Mostly behind the scenes as the bike itself has not needed modifications. For one Braaap and Sol Invictus are no longer ‘partners’ in the distribution of this bike.


Both companies now offer their own models with slight variations. Braaap are calling their model the ST-250 and have decided to market 3 variations. They are the Shadow, Atlas and the Cadet. Certainly early reports show the Cadet to be overtaking the popularity of the Shadow (the Matte black Mercury for those familiar with the old lineup).

cadetThe Cadet is set to be Braaaps most popular release. As Mostyn was the biggest seller of aftermarket parts for Braaap we can confirm that one of the most popular upgrades was the seat to the ultra slim design. This now comes as standard fare on this model in the brown that matches the Army green paint job perfectly.

The next variation is the Atlas.

This same atlassilver finish was available in the limited edition version last year. It also proved to be very popular among the new riders interested in the model.

Finally fans of the Marquee would already have seen the Shadow. This Matte Black version is the same as last years and outsold the Red and Gloss Black Mercury hands shadowdown. If you’ve seen these bikes on the streets and it wasn’t customized then it was most likely the Matte version. Still comes with the single seat and Matte Black exhaust.


The lineup hasn’t changed other details. The wheels are still the 17 inch rims and the powerplant remains the same. The most noticeable change will be the new 450cc variation available in the next 2 weeks. In the past this was an upgrade possibility whereas now it is available from the factory as a standard feature.

We will have links available in the next couple of days to all the new models.

Yamaha Scorpio 225 Custom Build

Yamaha Scorpio 225 Custom IMG_6672Build

We’ve known about one of the smaller Yamaha road bikes available for quite some time now. There’s no such thing as a ‘bad’ bike right?!


Through a strange turn of events I found myself riding a very standard 3 year old Scorpio with only 200 kilometres on the clock. I had the pleasure of riding around some beautiful mountain scenery not far out of Maxville on the NSW coast. Even with it’s small capacity (or maybe because of it) I really enjoyed throwing it around the twisties and stayed out much longer than the perplexed owner wanted me too.

Fast forward a couple of years and a new customer and all round good guy Tom mentioned he wanted a build done with the base being a Scorpio. We jumped at the opportunity and after a very long night meeting discussing  details we jumped head first into this build.


As mentioned the standard Scorpio is pretty uninspiring style wise so we really wanted to tear it back to basics. The build we decided on needed equal parts of Yamaha heritage, Island tracker feel (tip of the hat to some of the bikes we’ve seen in from Thailand and Indonesia) and our own design styling.


IMG_6669What we were left with when it was bare bones was a great platform in a super light package. These bikes will do the speed limit already but there’s no point in pointing it up a drag strip. Making it lighter and giving it the retro look was definitely on the cards.


After a bit of back and forth the Yamaha stripes were decided upon. Black and yellow have been done to death so after seeing a pic of the RZ paint job from the 80’s we went with the red/white you see here.


The seat was made with a plastic base and our in-house upholsterer finished it off in Black Naugahyde as you see here. There were a few different options for the tyres but we wanted something semi-aggresive while still not being terrible on the road.

IMG_6671Gauge, indicators and taillight are all POSH items that we already keep on the shelf so the only other custom parts needed were the loop and the guards which we make in our metal fab department.

Once the bike was together we wanted to get some cool shots and being 5 minutes form the beach and with this having an ‘Island’ feel from the beginning we called a good friend of the shop Jon Woods to do what he does best in the photography department. These shots were all taken at dusk with some very crafty flash work that I can’t begin to fathom. #nofiltershere

A big thanks to all the guys involved including Tom for letting us get this great bike on the road.

For further information or if you want something similar, look here.

Custom Guard for Cafe Racers and Bobbers

Custom Guard for Cafe Racers and Bobbers


Due to the increasing demand of custom guards we have simplified our order process.

With different styles and widths etc available you can quickly and easily tell us exactly what you require. Once we have all the information we require we can get our team into making it up for you.


Here’s what you get:

  • Guards hand rolled from 1mm Steel
  • Brackets cut out of 1.6mm steel
  • Hand rolled guard with brackets solid mounted or loose
  • Light acrylic coating ready for base and top coat painting *
  • No holes in brackets to allow for custom fitting to the bike
  • Typical cost for front guard: $170 or rear guard $220**

guard order form

* Guards are not ‘file finished’. If you want them bare let us know and we will give you a custom quote.

** Rear Guards are typically longer but do not come with brackets. guard (1)

guard (3)guard (2)



CB125E Streetfighter – Cafe Racer

CB125E Streetfighter – Cafe Racer

We are used to seeing Hondas in the shop. Even the occasional 125. What we weren’t expecting was a CB125E. That’s the current incarnation still very popular with Bike schools and as a commuter. The problem was how we could make something as modern as this look anywhere near a bike we’d put our name too. Check out the video here:

Thankfully the first stage was just to do the tail tidy on it. Josh made a one off bracket and cut away the back of the frame to allow for a loop/taillight combo. The seat naturally had to be modified so we came up with a few ideas. The problem was that a lot of after market seats look like planks with padding and the seat we were replacing had a wrap around style that would be difficult to replicate. The answer was a Frankenstein of plastic. We used the front of the original seat and welded our own creation to the back. Then our upholsterer did a tidy job of adding the hump and finishing it off in Naugahyde.

Now the back end was looking sweet, it really showed up the front end as the ugly duckling it was. A quick change of bars and mirrors got the lines a bit nicer but the gauges stood out like proverbial dog’s balls. Some quick electrical work and some work with the bracket and now the mini gauge looks a lot more in keeping with what we were trying to achieve.

There was a break of a few days where Ervin was riding it around like a possessed man and then we get the call “Let’s finish it off”. Back in for the lobster exhaust and airbox removal. We recommended these got done at the same time so when it came to tuning we wouldn’t need to do it twice.

A day later and the bike is back out on the road. It sounds heaps better and according to Ervin goes quite a bit better than standard. Even though it’s not our usual style of build (do we even have a style anymore) we are proud of the work and stoked with how happy the owner is with the bike so the build has found its way onto our pages!

Happy riding!

 Where did you get it and where do you live now: Brisbane

How long have you had the bike: 3 months

Have you had custom bikes before: No

What made you want to customise this one: Suggested by a friend

Work done: Tail tidy originally. Then I got the bug so seat, air pod and battery delete, bars, mirrors gauge and finally the exhaust

How did you hear about Mostyn: From a friend

What made you bring the bike to Mostyn: Good price and service

Price for all work done: A touch under $2k

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