This may help any one buying BLT 500w to 800w Tricycle Motors , Thay come with a none standed Bicycle sprocket 420 1/2" 5/16" 1/4" 0.227" which is 1/16" wider so you will need 420 chain
Torque or load is this same as bicycle chain at 810 lbs but wider roller means less wear
![Huh ???](https://goldenmotor.com/SMF/Smileys/default/huh.gif)
Bicycle and Motorcycle Chain Dimensions Guide
![Grin ;D](https://goldenmotor.com/SMF/Smileys/default/grin.gif)
Chain No. Pitch Roller Diameter Roller Width Sprocket thickness
Chain No. Pitch / Roller Diameter / Roller Width Sprocket thickness
Bicycle Chain, with Derailleur 40 1/2" 5/16" 1/8" 0.110"
Bicycle Chain, without Derailleur 40 1/2" 5/16" 3/32" 0.184"
Bicycle Chain, Asian Tricycle 420 1/2" 5/16" 1/4" 0.227"
Bicycle Chain, H/D Asian Tricycle 425 1/2" 5/16" 5/16" 0.284"
Motorcycle Chain, 428 1/2" 5/16" 5/16" 0.284"
Motorcycle Chain, 520 5/8" 0.400" 1/4" 0.227"
Motorcycle Chain, 528 5/8" 0.400" 5/16" 0.284"
Motorcycle Chain, 530 5/8" 0.400" 3/8" 0.343"
Motorcycle Chain, 630 3/4" 15/32" 3/8" 0.343"
ANSI Standard Chain Dimensions
![Cool 8)](https://goldenmotor.com/SMF/Smileys/default/cool.gif)
Chain No. Pitch Roller Diameter Roller Width Sprocket thickness Working Load
25 1/4" 0.130" 1/8" 0.110" 140 lbs
35 3/8" 0.200" 3/16" 0.168" 480 lbs
40 1/2" 5/16" 1/8" 0.110" 810 lbs
40 1/2" 5/16" 3/32" 0.184" 810 lbs
40 1/2" 5/16" 5/16" 0.284" 810 lbs
41 1/2" 0.306" 1/4" 0.227" 500 lbs
50 5/8" 0.400" 3/8" 0.343" 1400 lbs
60 3/4" 15/32" 1/2" 0.459" 1950 lbs
80 1" 5/8" 5/8" 0.575" 3300 lbs