
EK/PBR 630SRO 15/41 Chain Kit - Standard Sprocket
Replace the transmission of your roadster with this EK SRO chain kit, designed to offer a good balance between durability and price. This kit includes a 15-tooth front sprocket and a standard 41-tooth rear sprocket, paired with a 630 pitch chain and O-rings to reduce friction and maintain lubrication of the links. The SRO series focuses on reduced perforations to lighten the overall weight and heat-treated steel alloys to ensure proper performance for road use.
Particularly suitable for classic roadsters — for example, the models listed in compatibility (HONDA CB 750 K FOUR 1977-1978, CB 750 F SUPER SPORT 1978). For a durable replacement, follow the manufacturer's recommendations for tension adjustment and torque settings.