PLEASE NOTE: Delays in processing. Orders placed between Thursday 11 April and Wednesday 1 May will be processed 02 May.
Rear chain, 520 ( 5/8 inch pitch x 1/4 inch wide), 120 pitch, Choho brand, mainly used as dirt bike chain, so should be more than adequate for underpowered old machines. May be too wide overall for early Nortons, Triumphs and Velocettes. Dimensions: Pitch 0.625" [5/8"] (15.875mm); Inside plates 0.254" (6.46mm); roller dia 0.398" (10.16mm) plate thickness .065" (2.0mm); pin length 0.636" (17.30mm). Joiner pin Length 20.39mm, side palte width 2.45mm NOTE: Will not fit Renolds 110054 chain
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