Need to replace the chain-rings on a 7400 series crankset - inner one is worn, outer has a broken tooth. Bit of conflicting info out there on the www - velobase says 130BCD which was my original thought, but when double-checking i've seen comments about 135BCD? Anyone able to confirm which is correct please?
Also, I'm assuming I can only go 53-42 so that the set up isn't compromised?
And finally - I want black chain-rings - any knowledge of brands / retailers that will fit the bill?
Rick Powell 753 Track / Ribble Gran Fondo / Colnago Asso / 1975 Harry Quinn TT / 1990 Concorde Prelude / Vitus 992 / Keith Coppell Lo-Pro / 1986 KAS Vitus 979 / 1995 Mercian Strada Speciale / 2011 Raleigh GAC Militis 3 ex Graham Briggs / 1995 Ribble 7005 / 1986 Alan Super Record / 1985 MK1 Vitus 979 /
On the bench: Sirius 853 TT / Sun Solo Chrome / Ciocc Designer 84 / Giant TCR0 Pro Compact / Ribble 653 Tourer / Daccordi Lo-Pro / Look KG96 / Bottecchia Equipe / Look KG231 Credit Agricole / Contini Grand Prix / Aende Lo-Pro / TVT / Langdale 653 Pursuit /