So I have built up a C456 with an alfine hub, can't tell if it is me or tyres, or what, but it just doesn't seam to freewheel that well, when it's upside down the wheels spins freely, I have a fairly light rim, a tubeless kevlar tyre to try and keep the rotating weight down.
Anyone else found them a bit draggy and slow?
freewheels fine or should do - its a bit draggy pedalling
Done many miles yet? It will probably loosen up, although I don't remember mine being especially draggy on freewheeling.
Its a second hand one, but in excellent nick, clearly very little use. Might just be me, will have a poke around.
It might benefit from an clean/ATF dunking, although mine had done 1000+ miles before I did that.
Mine drags alot, even after new ATF.
Definately notice the drag on mine, freewheeling seems worse than pedalling, means less brake wear tho 
Especially noticable in the cold weather - increase in oil viscosity oil the probable cause. Still, chain losses should be lower but I don't think it will compensate. Think of it as extra training, if you are into that sort of thing.
I don't notice it.
OK, might be tempted to do an oil change, is this within the realms of a home mechanic (from a point of already knowing how to strip and rebuild more or less everything on a bike)?
Oil change is easy, take off nondrive cone/locknut, take off drive side lockring, dust cover, sprocket off and the whole lot pulls out for dipping in degreaser and then oil / grease. No special tools needed. Getting further into the gear gubbins gives a big possibility of home mechanic fail though.
Getting further into the gear gubbins gives a big possibility of home mechanic fail though
that'll be why yours is not working then M8.
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