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@Olly398
Ello. Been buildin me new bike. Got a problem I aint had before, and I've built five of 'em now...
Got a new sprocket on back - a Surly 19T - and a new Izumi ESH chain. The sprocket teeth and chain mesh so frikkin tightly that they cause binding when the drivetrain rotates, f-ing up chain tension, making a noise, causing friction and generally pissin me off. Even when you take the two components off the bike and just try engaging them manually, they stick a bit.
I've had to chuck an old 18T on the back, which I had hanging around. Lower quality than the Surly, thinner metal, but it works no problem. Geared a bit high now but I'll get over it. Honest.
So, anyone encountered this problem before? Surly sprockets so butch and chunky their teeth refuse to participate with anything but the broadest chains? Izumi ESH built to such exacting NJS tolerances that unless mounted on a genuine keirin frame they will conspire to subvert the build and do yer head in?
Before you ask, the chain and sprocket are both 1/8 and the chainline is good to +/- 1mm.
Cheers. Olly.