RK Excel America manufactures RK Racing Chains for street bikes and dirt bikes. RK makes the sealed O-ring style chains with heavy-duty carbon-infused alloy steel machinery. The chains work with O-ring seals constructed from Nitrile Butadiene rubber to reach high performance. The company develops a variety of chains for street use and racing use, and chains that can work with Harley Davidson.
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RK offers the lightweight GB525GXW bike chains. The chains can fit street bikes up to 1,000cc and dirt bikes with 800cc engines. The high-performance chains include a total tensile strength rating of 9,300 foot-pounds. The gold chain weighs 1.95kg. It works with street bikes with a maximum 1,100cc and off-road bikes with a total 800cc. RK also makes a non-gold chain for bikes.
The RK 630SO chain features an 11,100 foot-pound tensile strength rating. The O-ring chain fits sports bikes up to 1,300cc. The chain weighs 2.94kg. A smaller O-ring chain weighs 78kg. and includes a 4,420 maximum tensile strength rating. It works with street bikes and off-road bikes up to 125cc.
RK Racing Chains offers XW-Ring premium chains that have a tensile strength rating range from 8,500 to 10,000 foot-pounds. The XW-Ring chains work with sports bike with up to 1,400cc and dirt bikes with up to 900cc. The RK 520GXW chain weighs 170kg. It includes an 8,800-foot-pound of tensile strength rating. The chain fits street bikes up to 1,000cc and off-road bikes with up to 750cc. The 520GXW chain comes in gold also.
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