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- Select Brand - AVON BRIDGESTONE DUNLOP IRC METZELER MICHELIN SHINKO VEE RUBBER

(the M90 uses the same style shift mechanism parts as the Busa, just under the clutch assembly Instead of near the countershaft sprocket.)

Banish the "Boot Shift" shift forever.


Includes Factory Pro's AWESOME Marc Salvisberg designed Detent Star kit - Changes the rough shifting the M90's are well known for into the sweetest, smoothest shifting bike in town AND the quickest non-airshifting bike at the strip - you'll think you bought a different bike.

Better / quicker 1-2 shifts.
Virtually eliminate missed shifts - up and down.
Quicker 3rd through top gear shifts.
Helps prevent gear and fork damage caused by missed shifts.

Perfect for drag racing and street!
You can decrease your "shift kill" time for better ET's

It makes a "foot" shift an extremely quick event - Almost eliminate a missed 2nd gear shift (though if you try, you can still miss it...)

In fact, I'd try the Factory Pro Shift STAR Kit before I pulled the engine down to "fix" the gear dogs - as long as the gears aren't damaged so much that the gears engage and then pop out at high rpm - that's symptom of rounded gear dogs.

Includes:
Factory Pro designed, refined, CNC machined, heat treated DETENT STAR, Factory Pro's own heavy duty detent spring but NOT a new M90 clutch cover gasket. Makes shifting quicker and more positive - "virtually" eliminating missed shifts. The stronger detent spring rotates the shift drum quicker and the gears are more likely to engage under quick shift conditions - and "lazy" shifts work well, too

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