Blade Set of Chains for high quality bicycle, MTB and trekking wheels Stronglight – Crown of bracelet 5 Hole 110 mm CT2 Black also for compactl racing and circle 110 mm compatible with drives for 9 – 10 and 11 speeds, aluminium 7075 T6 – Chain Of Ptfe Coated Ceramic CSA climb aid of indexing arm hole circle of 110 mm, 5 holes distance between two holes 64.7 mm (centre/centre Measured) cranks use Shimano Bike Double or Triple MTB trekking with this hole chain sheets with this circle hole diameter up today in racing bike manufacturers and have been up to 1998 in mountain bike crankset uses 34 – 42 Teeth for use indoor or middle of blade of chains for outdoor use, Note: Picture shows example, 46 – 53 Teeth, according to bestellter execution deviates from the article of the image from. STRONGLIGHT – CT2 Ceramic Chain of sheets with of aluminium 7075 T6.Coating of teflón. the ceramic coating provides a better resistance, durability and resistance to the abrasión. the Teflon coating reduces the friction of the chain for 80%, change function, Permanent Lubrication enhances the unit provides clearly bajas. wheels These Chains Are Durable/lightweight/Precision/mantenimiento. of course also has developed the indexing CSA for the most demanding of athletes to offer the best material, even under the most extreme conditions.