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Blue Norco (Robin
Back
;
Front
:
52/40
Rear
:
13-34
LowRatio
:
1.18
HighRatio
:
4.0
Range
:
339%
LowInch
:
32
HighInch
:
108
This is my 1970's Norco after I fitted it out with a larger 34 tooth rear cassette.