there are round greaseless weights that you can run in a machined sheave and there are greaseless overdrive weights that are shaped like a trapazoid that you can NOT run in a machined sheave. If he hasn't bought them yet, just tell him to get the od weights and he'll save about $150. The OD weights give you the same effect as a machined sheave, raising your top end without losing any bottom end, but the OD weights don't give you "roller flop" or a shift feel like the machined sheave will. Also, if you have a 660, you'll need a 700 cam plate to go greaseless. If you are going greaseless, you'll also need to get the cam slides that are greaseless and those won't fit on a 660 cam plate. For the od weights and cam sliders, you'll be looking at around $100 for all of it plus the cost of a 700 cam plate, which I believe is in the neighborhood of $50. DO NOT TRY TO RUN GREASELESS WEIGHTS WHITHOUT GREASELESS CAM SLIDERS.
You cam sliders will melt without the grease and you will have problems
post edited by Mrmojorisan - 2010/04/13 12:40:57