Originally Posted by SoSmellyAir

I cannot speak to pumpkinhed 's talent (or lack thereof), but assuming that he has a basic wrench and socket set (for more than decorative purposes), the Park Tool crank puller tool is $15, and the Park Tool bottom bracket socket is $19 (both at REI). So not an exorbitant sum.



According to REI (see link above), the Scott Metrix 40 which pumpkinhed has comes with a Shimano Altus 8 speed 11-32 cassette, i.e., Shimano CS-HG31, which is the same width as a Shimano 10 speed cassette, which thus should fit the existing freehub.



Agreed. A 7 speed bike usually has a freewheel instead of a freehub, which makes most drivetrain upgrades not worthwhile.