Hello all,

I'm making a custom fork brace for a gs500. The default one is a pretty flimsy piece of sheet metal, I figured this would be a good quick project to add to my portfolio while I have access to the schools CNC machines.

Most aftermarket braces are aluminum. My understanding of materials is that aluminum turns brittle over time/moisture, and is more likely to snap than to flex.

Steel is obviously heavier, but is stronger, would bend rather than tear, and would provide the same rigidity I want (going for a 1mm thick to 5mm thick brace is probably more than enough strength regardless of material.

The goal is to have better handling, reduce chances of wobble at speeds, in general just stiffer front forks. Is there something I'm missing for why everyone prefers aluminum over steel for this application? Is it just material costs or is there some performance benefits for aluminum I'm ignorant of?

I'd love to hear the experience of anyone with more experience fabricating custom bike parts!

Having issues with switching gears on My V30, getting neutral and first gear only, had been jump starting into running bike from first gear one time tooo many, crushed washer or?

Anyone have this happen with similar bike type?

First time poster;

There has been a 1967 BSA A50 Royal Star in my garage for as long as I can remember. I’m 17 now. I was always under the impression that it was just something my dad had bought that never really ran, but that he tinkered with. However, I’ve always been interested in having a motorbike, and this old britbike has always bugged me, so i asked my dad about it, and he said that my mom bought it for them when they got married, and has the documentation to back it up. apparently, it used to run. I have the manual, the original part catalogue, and all the parts. For whatever reason (i’m sure it’s valid), my dad stripped apart the bike and even sanded the original red from everywhere there was red.

I am not a mechanic. I am an enthusiast who likes to work on things that move, like my first car, a 1998 jeep XJ, which was heavily modified and required a LOT of maintenance, so I can move a wrench pretty well, and understand how cars work. However, I would like to fix, understand, and ride this motorbike, and ideally, fully restore it for my parents.

it is in pieces.
where do i start?

So I'm most of the way through my build it's I'm basically just reassembling now..

My question is what you think I should value it at. obviously the bike was ready for scrap but now it's like new! I use to build when I was younger but i started a family and got sidelined you know how it goes so now I'm back id like to build customs and sell I've spent 300 hours on build so far it's a vn750 1994 German import.. I've removed all emotions and restrictions and upjetted to max power possible what would you guys say and do you think there's anything I should change before I finalise it I hope to buy something more valuable to sell on I've spent £1500 on the bike and parts all in thanks for any help

I’m trying to get spark on this 1981 gsx250 see my hand drawn diagram and the workshop wiring diagram, why am I not getting spark? It gets 12v to the first starter relay pole but not the second with the switch pushed

This is for a cafe racer build, I’m trying to get spark to fire the engine.

Parts finally arrived. Clutch finished, brakes finished , pretty pinch bolts installed.
Unfortunately, not in time to ride to Daytona.😵

Has anyone had any problems with mounting an M.Unit on the frame above engine / below tank tunnel where it isn’t fully waterproofed? It’s shown that way on an install video from motogadget and considering doing it myself but wondered if anyone else had experience with it and any possible problems? Also mounting dual output coil nearby and little ECU from the trispark ignition. I guess i will try keep it at least 10cm away from the coils. Thanks

Im adapting a monoshock system on my double shock bike. The swingarm im trying to adapt has a 12cm width, but the pivot hole on the frame is 15cm width! Should i reduce the swingarm or the frame? I think if i reduce the frame it gonna have problems with chain aligning. Some ideas?

Well, i guess quote speaks for itself. Would you guys recommend me getting and impact wrench or not really needed? I've seen so many videos of people pulling off nuts so easy with it that i got interested...

With the paint removed from the tank and the bad welds fixed. You can just see how well it fits the bike.

Front fender made!

Made the tank cover. Only couple things left to go!

Short film on Tom and Purpose Built Moto, his custom and restoration shop on the Gold Coast.

It started in his home garage with one customer and got serious around 2019. Eventually his wife told him to go full-time on bikes.

He doesn’t sketch first. He learns each bike’s history and lets that shape the build, like one that had sat in a barn for decades.

The film covers fabrication and welding, front-end work, a bare metal tank, leather seat and polished alloy details, and a test run at the end.

His advice: “Let the work do the talk.”

Do the builders here sketch first, or design on the bench?

The subframe is getting close to being done. The rear brake master cylinder is mounted. And a front fender has been modified to fit.

Carbs have been cleaned and made to look nice but aren't installed yet. Same thing with the rear brake caliper.

Give my brother a follow if you want to see more of the build. IG greyslopegarage

This is my 50% progress update on my 1970 ct90 rebuilding the motor this weekend along with the clutch/rear wheel compliance bits. I’ve got grips, headlight guard materials, windshield and mirrors on the way. Just dropped the seat at reupholstery yesterday 2-3 week eta. Super stoked to have the build done!

Estoy intentando modificar una moto antigua, pero me encuentro con una duda muy frecuentemente. Mi intención es modificarla significativamente. Está muy sucia, con marcas y desperfectos en muchas piezas. ¿Creéis que es buena idea desmontarla entera?. Pienso que de esa forma podría limpiar y ver los desperfectos mucho más cómodo. Además podría montarla sin tener la molestia de otras piezas que quizá deba montar más adelante.

Un saludo!

Exhaust finished! 14 days left!

Hey guys need few details and have some doubts to clear. Anyone with experience in rebuilding Daytonas. Please help

Found this picture of a Ninja 500 with a really cool looking front and i want to know what you call that mod specifically, because i cant find it anywhere. I have no clue what im talking about, so im not sure if its some type of winglets or something else. Any information would be much appreciated

Hi there, just got my hands on a vintage sportster from '93 and thought it'd be nice to leave my own mark on it with some modifications. It's been equipped with forward pedals and alternate handlebars already, but I feel like a sissy bar and other stuff would be nice touches. Open for more ideas ideas and maybe some experiences made on this model.