taco eater :
Adam Riggsby - Pike Cycles from Allston, MA United States
so alright, here me out. this shoe is sick, but literally only for STOCK applications. The green stock a35/a55 spring fits perefectly with no dremeling needed. it is because those springs are only 5mm in diameter, where as any other aftermarket springs are like 6mm plus.
with the right tools (I use the clutch assembly tool that i got from treats in a bench vice and a flat blade screwdriver), you have rebuilt a stock clutch in just minutes.
again, cool and badass but only for stock spring applications.
UPDATE: I've got these shoes on 1st and 2nd gear in an a35 with a 64cc airsal kit, the super street head, hunter pipe and 15mm SHA and WOW, it BLASTS. Shifts into first super smooth, 2nd gear slips perfectly. a true pleasure with the 9.5lb stock springs.
don't listen to the guy below, listen to me. I do this shit for a living and I wouldn't steer you wrong.
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This part is crap, dont' do it!
June 20, 2020
taco eater :
Dave Thacker from Tipp City, OH United States
Grove is so tight you need to drive the springs in with a drift. It's a garbage part that needs finish machining to be usable. I wish I had read the reviews on the single shoes before I purchased these. I've already soaked them them overnight so no doubt like everybody else who bought this part..... Where are stock factory shoes? Will never buy again. $66 for 1st & 2nd down the drain.
actually super sick, badass shoe 
This part is crap, dont' do it!