Chain

Monster Scooter Parts stocks scooter chains of many sizes to fit almost every gas and electric scooter, motorcycle, ATV, go kart, and dirt bike make and model; and that's a lot of scooter chain! Look through the list of sizes and select the right scooter and pit bike chains for your machine.

If after searching through all these scooter chains, your exact size still cannot be found, you may want to purchase a section of open loop scooter chain and pair it up with the proper master link. Getting back into the sheer fun of scootery is easy with replacement scooter and pit bike chains from Monster Scooter Parts.

CHAIN PITCH:
The most reliable method for determining scooter chain pitch is to examine three consecutive pin heads and measure the distance between the center of the first and the center of the third head. Divide this measurement by two to get the pitch.

#25 Chain (1/4" Pitch):
The most common size of scooter chains used on electric scooters, and also used on many other electric vehicles.

8mm 05T Chain (8mm Pitch, 4.71mm Roller Diameter, 4.61mm Roller Width):
A common size scooter chain used on 2-stroke gas scooters of engine size 52cc and below. Also used on gas pocket bikes, mini choppers, ATVs, go karts, and dirt bikes.

8mm 05B Chain (8mm Pitch, 5mm Roller Diameter, 3mm Roller Width):
Used on gas scooters, gas pocket bikes, mini choppers, ATVs, go karts, and dirt bikes.

#35 Chain (3/8" Pitch):
Used on many gas scooters, gas pocket bikes, mini choppers, ATVs, go karts, and dirt bikes.

420 Chain (1/2" Pitch, 5/16" Roller Diameter, 1/4" Roller Width):
Widely used pit bike chain also used on full size gas scooters, motorcycles, ATVs, go karts, and dirt bikes.

428 Chain (1/2" Pitch, 0.335" Roller Diameter, 5/16" Roller Width):
Widely used pit bike chain also used on full size gas scooters, motorcycles, ATVs, go karts, and dirt bikes.

Bicycle Chain (1/2" Pitch):
This is the standard bicycle chain you knew when you were a kid, and is likewise found on today's electric bikes. They may have either a 1/8" or 3/32" roller width, and are usually identified by such.

All chain counts include both outer AND inner links! For example, a 96-link chain includes 48 outer and 48 inner links (plates).

Metric Chain Dimensions

Standard name	Chain pitch	Roller diameter	Roller width	Exterior width	Exterior height
#25	6.35 mm	3.3 mm	3.18 mm	7.9 mm	6 mm
#35	9.52 mm	5.08 mm	4.77 mm	12.4 mm	9 mm
#40	12.7 mm	7.95 mm	7.85 mm	16.6 mm	12 mm
8mm 05T	8 mm	4.71 mm	4.61 mm	11.48 mm	7.6 mm
8mm 05B	8 mm	5 mm	3 mm	8.2 mm	7.1 mm
420	12.7 mm	7.77 mm	6.25 mm	14.7 mm	12 mm
428	12.7 mm	8.51 mm	7.75 mm	16.7 mm	11.8 mm