Project MT500 Twinshock Motorcrosser

[Minter]

mmmmmmmm, titanium. How does it sound? Have you had it running yet? It looks the goods.

Its the same as the one on my blue trail bike version and it does sound good! There is a video of it going up Bamford Clough somewhere on here complete with sound track!

[Minter]

After many an hour trying and testing different cranks, pistons, cams, heads, clutches and exhausts, ive come up with the following....

I'd like to get it set up on a rolling road but time is running out for this weekends King of the Castle event at farleigh castle this weekend...



5 speed close ratio 'box..



Sportax clutch..!



Special Crank!



RHS with semi slipper high compression piston and 'special' bolts holding crank cases together!



Special clutch fitted - note no counter balance shaft..



Nice piston!



Yep! nice Piston!





604 head with 36mm inlet valves.. all polished and re ground



Special valve springs and caps and rockers..





Titanium even in the parts you wont even see!



Ran up on the test bed... wow its got some compression!



In the frame, at last..







Runs well, must be the 32mm headers! Hopefully if these work better than the 28's i'll get them produced..

[twmtomos1]

like it looks good

[jungleMTbiker]

Mmmmmmm, nice.

What's the final displacement on this one? 640?

I've left the balance shafts out when rebuilding Honda XL/XR500 engines, can't say as I've ever actually missed them!

[Minter]

It's only 490 cc now..!

[Andrew]

It's only 40 cc now..!

40cc can a 16 year old ride it

[Minter]

It's only 40 cc now..!

40cc can a 16 year old ride it

thats predictive text for you! should read 490cc!!

[namtip]

Nice piston!

Wow there is a certain sexiness about this picture... if there were an MT-Porn section this could easily be the centrefold

Gotta stop drooling...

[arceye]

That's just blown my mind man...
Let us know how you get on at Farleigh Castle. Take a video !

[deadgrass]

bike looks great gary, lovely attention to detail.