Symbolic for speed having already made the worlds lightest 10speed chain x sl series kmc decided to produce a new cheaper l version sharing a lot of the sl technology the l is a perfect marriage of performance and budget made for any 9 or 10 speed systems in either silver or gold finish shimano or campagnolo compatible race proven both on the road team astana wurth and off road k2 rothaus cube trek usa mtb team benelux we are pretty confident that our x series can even satisfy t