Final KR Based Race Bike Project

si.likes.guiness · Post by **si.likes.guiness** » Tue Jan 01, 2013 4:06 pm

thanks mate

fred · Post by **fred** » Thu Jan 03, 2013 10:15 pm

hi ben ,are you still going to do a fibreglass cover from that steel lid

and jumping threads a bit ,is ther any hollow axle n swingarm shafts out ther that could be made to fit ,or do it the old fashion way ,

Luders · Post by **Luders** » Thu Jan 03, 2013 11:05 pm

Yes I'll document the fibreglass process here for the tank shroud.

I think from an engineering perspective, axles need to be solid steel.

marksim · Post by **marksim** » Fri Jan 04, 2013 11:42 pm

Just read all this so far and well done.
Bikes hopefully gunna be a winner

KR-1R · Post by **KR-1R** » Fri Jan 04, 2013 11:51 pm

.
.
you're gonna keep the kick start?

how about an alloy one off a KX or something (125's are stubbier)
don't know what spline would be the correct one though

Luders · Post by **Luders** » Sat Jan 05, 2013 7:38 am

Yes and no. What I did last year was not fix it on and just removed it once it was started. If it wasn't for the fact I need to warm the engine before a race, I wouldn't have one at all.

I blame tyre warmers myself.

maccas · Post by **maccas** » Tue Jan 08, 2013 1:14 pm

Ben,

Thought this might be of interest to you!

Just noticed that both the front and rear wheel spindle on the 3xv are hollow as standard. Might be something else to think about.

Dan

Luders · Post by **Luders** » Tue Jan 08, 2013 1:16 pm

Thanks Dan, that is interesting. Can you tell me the diameters please?

maccas · Post by **maccas** » Tue Jan 08, 2013 1:18 pm

Also the swingarm spindle is too!

Dan

maccas · Post by **maccas** » Tue Jan 08, 2013 1:18 pm

Yes no problem i'll measure them all now

Dan

maccas · Post by **maccas** » Tue Jan 08, 2013 1:57 pm

Rear spindle:

Length to underside of bolt head: 330mm
Outer diameter: 20mm
Inner diameter: 14mm (apart from 45mm of 9.5mm I.D at the threaded end)
Weight: 450g

Front spindle (couldn't take it off as didn't have a stand, sorry mate)

Length to underside of bolt head (circlip in this case): 250mm
Outer diameter: 17mm
Inner diameter: 13mm (apart from 50mm of 9mm I.D at threaded end)
Haven't weighed it.

Swingarm spindle:

Total length: 300mm
O.D: 20mm
I.D: 13mm (apart from 30mm of 9mm I.D at threaded end)
Haven't weighed it.

These are from a R/RS model. The SP/SPR/ late RS models might use different spindles as the forks and swingarm are different, as are the chain adjuster blocks at the back.

Hope that's of some use

Dan

Luders · Post by **Luders** » Tue Jan 08, 2013 2:32 pm

Thanks Dan, I'll get all those bolts drilled and lightened

maccas · Post by **maccas** » Tue Jan 08, 2013 3:08 pm

How much do the stock spindles weigh Ben?

Dan

Luders · Post by **Luders** » Tue Jan 08, 2013 4:31 pm

Remember I have a TZ front end, but will weigh them both on Sunday.

fred · Post by **fred** » Wed Jan 09, 2013 12:49 am

i like planting seeds me, got some titanium flat 1.5 x 30 x 500 good for brackets ect ,its yours