Every chain has life span.
We recommend that you check the chain elongation before each race/practice. (O-ring and Non Sealed chains)
Please do not use Gasoline, Kerosene for cleaning the chains. It may damage the O-ring (seal) and shorten the life span.
Special O-Ring sealed chainGB215KRO
It expands the option to have a more precise gear ratio, which is one of the secrets of today`s Champions.
O-Ring sealed chainBB219KRO
BB219KRO has been the Champions’ choice in the highest categories such as KF class and OK class.
The latest technology is used in every component in these chains.
The quality is self-explanatory by the results.
RK Orange series is preferred by “Orange karters” such as CRG, Exprit, Intrepid, etc.,
Non sealed chainGB219KR
Caution: Life span is shorter than KRO.