The subject of the offer is: RK 428SB/088 standard red open drive chain with a clasp (product code: RK 428SB/088 7l250523 ) Intended use: Explorer Defender 50 Evo Years: 2006-2012 The chain fits the original gear ratios of the vehicles. If the sprocket size in your vehicle has been changed, please select the chain according to length.Technical data:Size: : 428Length: : 88 Number of linksSeal type: : UnsealedManufacturer: : RKType: : SBVersion / Type: : OpenStrength: : 2350 kgOuter plate color: : Neon redInner plate color: : BlackConnecting link type: : ClaspRK drive chain of the SB series.The basic version of unsealed RK chains, intended for motorcycles with the lowest capacities and power. Used successfully in mopeds up to max. capacities 125 cm3 (420 SB), 135 cm3 (428 SB) and 250 cm3 (520 SB). RK SB series chains are available in various finishing colors depending on size.