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.
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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