Now, let me answer two repeatedly asked questions: 1) why would I want less than 8/9 speed cassette? 2) why is a smaller gear range a good thing? 3) is there any actual use for cassette spacers?
1) When you have fewer sprockets on your cassette, you can make finer adjustments to chainline of your favorite trials gear, and it’s a very good thing to have completely straight chainline for your fav. trialsin gear. You can use spacers to move those few wheels left or right to make your chain straight. I hope I don’t have to tell your why straight chainline is a good thing. 😉 (few hints: forbidden gears, more power, chain less bent lasts longer, cassette lasts longer etc. – trust the man who snapped two chains and destroyed XT cassette 🙂 You do not have to buy yourself a new cassette, but it’s good that you know at least why it’s done. 2) Now we finally come to derailleurs. We want to have them, but don’t want to destroy them, and that’s the very thing that we usually end up doing because they’re situated on a perfectly wrong place, sticking out, and in addition are so tender that they can’t hold the riders weight on their fragile cages. So we usually end up crashing the rear me
