Tuesday, May 22, 2012

And the Rear wheel fits right in...




Thanks to a very generous member from perthstreetbikes.com I now have  the sprocket carrier machined down and a matching spacer which centralises the wheel and aligns the sprockets. After a few more small mods the brake torque arm and brake cable bolt right up, perfect. Just need to make sprocket bolts shorter, find a longer bolt for the torque arm connection and order a new rear sprocket.

Sunday, May 13, 2012

Its not Photoshop its real!

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Bolted my USD front end onto the DR400 Supermoto tonight. Fits really well, the triple clamp bolt is the right length, all the steering stops work and the forks do not hit the tank! Am planning to push the forks up so they protrude out of the top of the triple clamp as the USD forks are 100mm longer. The 21 inch front tyre is 710mm in diameter, where as the 16 inch front tyre is 604mm in diameter, so there is 50mm already, so I just need to push the forks up by around another 50mm to get back to standard geometry.

Saturday, May 12, 2012

Now for the Rear Wheel part II




Took a couple of photos to illustrate where the cush drive will be modfiied to allow the rim to sit in centrally in the swing-arm. Just remove material where indicated.

Now for the Rear Wheel


Now that the front end is fairly complete, I thought to see wnat mods are required to get the rear wheel to fit. It is an identical wheel to the front, from a KZ650 Kawasaki custom. The chain from ebay arrived the other day and together with my 'mock-up' rear sprocket I could investigate chain and tyre clearances. I discovered that with the chain in correct alignment the rim needs to be moved to the left by around 9mm. This will be achieved by machining down the face where the sprocket mates by 9mm or maybe 10mm. This will allow fitment of a 130mm wide rear tyre leaving 4mm clearance on the chain.

Saturday, May 5, 2012

USD front end 99% complete



Hooray! Its been a while coming, but my retro front end is nearly ready to fit to the bike. Had a tyre fitted to the wheel this morning, a Metzeler Lasertec 110/80-16 which is the widest I can get between the fork legs. Also picked up a front brake cable from a Suzuki RM250Z (1982 vintage motocrosser) and it is long enough! Result! All thats left to do now is fine tune the wheel spacers and make a fitting to fit the lower end of the brake cable to the actuator. Am very happy with the result!