My 66cm QuickBeam is the first single-speed I've had in a long, long time. I'm riding it in a fixed-gear (40/16) with JackBrown Blues (85 psi) and I would not say it's slow or sluggish at all - in fact, just the opposite, and a delight to ride in every way. One thing that *could* make a bike feel sluggish is loose spokes - are the spokes properly tensioned on the OP's wheels?
On chain tension (which is a negligible issue on bikes with derailers), I have found that there can be significant variability through the rotation of the cranks, if the chainring is not perfectly centered relative to the BB axle. With some patient adjusting, I've found it's possible to get the ring centered, just back off the bolts, then slowly snug a couple of them, rotate the cranks, and note where the chain gets tight. Then relax one or more bolts enough to nudge the ring to the rear a very small amount, snug back, and test again. It's an iterative process, but the chainring can be made to center around the BB with no discernable variation in chain tension. - Andrew, Berkeley -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
