Registered Forum User
BSB Star
Posts: 6,720
Join Date: Feb 2002
Location: northampton
Mood: Has change happened...must of missed it!
A 748 range duke has a 520 chain the 99* range having the 525.
Size doesnt allways matter as much as the quality of the components materials.
The majority of racers inc GP use the 520 erv, a narrower but better quality material.
Oh generally, you pays your money... but sometimes can get ripped off!
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