Originally Posted by Poncho Villa
rt, stock gears are 42 x 50 teeth. Eurogears are 44 x 48. ratios are 1.19:1 vs 1.09:1. difference is approx 9%. rpms changes are equivalent. drop approx 300 rpm at 70mph, puts you back in that sweet spot at 2700. just Lulls along happy like. 80mph in 5th b4 she even begins to sing. only punched thru triples once or twice and never heard any screaming.
somes just prefer not to touch their bikes is ok. is why they make 'spensive pulleys for you guys.
changing gears seems too big a project for most folks that are skared of the inards of their motors. is not a difficult job and can be done in an evening. more than changing the gears or the bike character, this kinda work changes you. 'tis worth it. ponchout
I did the math on the front pulley change 32 to 33 ,,,,it came out to a 3.1% decrease in RPM. The Trans gear change from 42/50 to euro 44/48 revealed 8.43% decrease in RPM!!!!!!!!!! I'm planning on doing both for a total of 11.53% decrease.