For those of you who're debating a front freewheel/freehub you might find this usefull. working out how many degrees it take to engage a freehub/rear freewheel (it doesn't matter for a front freewheel because you don't benefeit from the gears, it's just down to engagements,where you just divide the number of engagements into 360) divide the number of teeth you've got up front by what you've got on the rear: i.e for the standard mod gear 18/12 you'd get 1.5 (so every 360 your cranks spin when pedaling you're wheel spins 540 (360 x 1.5)) times the number you get from the ratio by the number of engagements your hub/freewheel has. i.e for a profile 1.5 x 48 = 72. (the new number is bassicly the number of clicks you'de get spinning the cranks 360) divide 360 by the "new" number of engagements, the value is the most you'd have to pedal to catch an engagement i.e 360/72 = 5degrees Quick referance hubs/freewheel engagements: ACS claw 36ep Tensile 60ep Monty 72ep Tryall 108ep Eno 72ep Echo 72ep Hope Xc 21ep? Hope Mono 21ep? Hope Pro2 48ep Profile 48ep Deng freehubs 48ep Chris King 72ep (very bored ogre)