non-fixie
Senior Retro Guru
Thank you, @doctor-bond , for those clear pictures. Looking at them I'm thinking that, with its curved back plate, the Deerhead might be just a bit better at preventing the chain to drop from the inner ring.
Reaching into hpv territory
And Mat Hoffman know about his pedals?Does Alf Engers know you've got his chain ring @Nob ?
Alf used a 57 however a certain Nik Bowdler used a 77T ring in TT’s to good effectDoes Alf Engers know you've got his chain ring @Nob ?