JDR bike build

**Ivan** · 5th May 2011, 18:17

just for anyone intrested Im building a bike completly from ground up based off a 1996 Honda RS125,

we are building our own frame jig and everything for hopes of in the future being able to produce a formula 3 bike

Hers some pics anyway ill update more as it slowly comes together

The forks were originally from the chinese 125 dirt bike they have since been turned down in a lathe and shortened up with new springs from a xl185 in there,

The headset is my biggest down fall im going to haveto build a new one I weighed it before and it weighs 4 1/2 kg's too heavy I think?

The RS is the bike all the measurements and angles came from the tube framing im using sits on the RS and lines up perfectly its exactly the same,

The XL motor fits inside the frame width perfectly and is just the right height I am building a mould off my RS tank and building a fibreglass dummy cover so it resembles the shape of the RS as well but will have to build a custom tank that fits inside this

**TZ350** · 5th May 2011, 20:12

Very interesting project, please keep posting as it progresses.

**Arronduke** · 5th May 2011, 22:06

Impressed... great enineering skill... but why an XL motor... cant fing a honda 90 engine?

**Ivan** · 5th May 2011, 22:15

Cheers guys will keep you posted,

Just fully assembled 1 fork tonight down fall is they rebound so fast compression is really good but rebound is abit agressive,

By the weekend it will be alot more like a bike!

And because the XL motors are such a good engine interchangble with alot of XR parts including the 200 head which has alot bigger valves and ports

**F5 Dave** · 6th May 2011, 10:04

Chance of this ever seeing a race track?

on past performance one would have to say; a little less than Nil before you lose interest & give up.

& this is the most ambitious by far.

4th time lucky?

**Ivan** · 6th May 2011, 12:19

haha, This time it will, It has to be ready for another event I am racing it at, and my dad needs the jig to make other bikes for people at college to use,

So he is also putting alot of effort into it.

The last few I was young only 16 years old and didnt really have much of an idea as to what I was doing I just started and got in there, then SV650's and ZX6RR's came and took all my intrest and I concentrated on them,

Then piss drinking came and partying in town haha now im like a old man I spend heaps of time at home so have decided to potter out to the sheds on nights I can be bothered and on weekends and spend a few hours building it,

**jasonu** · 6th May 2011, 13:00

The Aprillia RS125 trip clamps will work, are strong and don't weigh much. Ditch the chinky forks and use some RGV250 USD's. You will have to shorten them by around 75mm but will be a much better fork. Brice Minto from Buckets and bits in Welly has some for not much $'s.
Are you using chromemoly tubeing or ???
What are you doing for a swingarm? I might have something you can use. PM if interested.
Very interested in your progress reports.
Anyone got an RS gas tank they want to sell preferably 95 or newer but 89 thru 94 would be OK too.

**ajturbo** · 6th May 2011, 15:31

Good one Ivan...!!!

**White trash** · 6th May 2011, 15:51

Is that tattoo real?

**Arronduke** · 6th May 2011, 20:37

wow this is so cool..... my next bike... Oh need to learn to ride first

**Ivan** · 7th May 2011, 11:29

Originally Posted by White trash

Is that tattoo real?

yeah it is hahahaha

**Ivan** · 7th May 2011, 11:33

Originally Posted by jasonu

The Aprillia RS125 trip clamps will work, are strong and don't weigh much. Ditch the chinky forks and use some RGV250 USD's. You will have to shorten them by around 75mm but will be a much better fork. Brice Minto from Buckets and bits in Welly has some for not much $'s.
Are you using chromemoly tubeing or ???
What are you doing for a swingarm? I might have something you can use. PM if interested.
Very interested in your progress reports.
Anyone got an RS gas tank they want to sell preferably 95 or newer but 89 thru 94 would be OK too.

Hey man thats the plan is to get all those parts and put them on im just for now using these partsto get it at least standing up and looking like a bike

Ive had my eyes on trademe the last few nights looking at bits and bobs

Are those RGV forks on a 95+ RS or is that a pre 95 with a 95 on swing arm???

Im just at the momment using tube mild steel and bracing it like this
http://www.singlecellracing.com/images/apr3.jpg

**jasonu** · 7th May 2011, 11:48

Originally Posted by Ivan

Hey man thats the plan is to get all those parts and put them on im just for now using these partsto get it at least standing up and looking like a bike

Ive had my eyes on trademe the last few nights looking at bits and bobs

Are those RGV forks on a 95+ RS or is that a pre 95 with a 95 on swing arm???

Im just at the momment using tube mild steel and bracing it like this
http://www.singlecellracing.com/images/apr3.jpg

95 frame and arm. The forks pictured are 91 RS1215 which have since been sold. I have a set of 95 USD RS125 forks for it.