This might do the trick:
I’m using one on a modern steel frame. The clamp is substantial enough not to need the anti-slip pip and it fits a modern steel tube set with larger down tube diameter. Reynolds 853 in my case.
No problem. 39T gives you a range of 29-95 inches.
Depends on the make and model of your mech. It will have a total tooth capacity which is front rings range plus rear cassette range. In your case, it’s 0 + 25 = 25 teeth.
The chain ring size depends on the gear ratios you want. In your case it’s 30-98 inches which is ok for most riding.
Or you can get a longer brake nut. Either way, it won’t look pretty as recessed rear brake bolts only just protrude beyond the hole in the brake bridge.
It looks identical to a chuck I bought from Topeak so maybe they have spare gaskets.
Thanks. I've sent you an email to the address you gave me in the PM so hopefully that will sort it,
Genuine parts from the 70's. All prices include postage.
Shimano Dura Ace derailleurs; front mech, rear mech, downtube shifters, downtube cable guide and derailleur hanger £30 SOLD
Weinmann side pull brake calipers £20 SOLD
Tange Allez headset £15
Never seen a QR rear wheel for track frames with 120mm OLD. I am not sure they even exist. Nearest would be a QR wheel for an old 5/6 speed bike with a OLD of 126mm which I guess could be made to fit with a little brute force.
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