Bicycle Crank

1. Our main products is chainwheel&crank, we have many years experiences in manufacturing bicycle parts, and especially chainwheel&crank.

2. Our crank have two styles-The cotter crank and cotterless crank.
1)The crank length of the cotter crank-89mm, 102mm, 114mm, 127mm, 140mm(22 inches bicycle), 152mm(24inches bicycle), 165mm(26inches bicycle), 170mm and 175mm(28inches bicycle).
2)The crank length of the cotter crank-89mm, 102mm, 114mm, 127mm, 140mm, 152mm, 165mm.
3)The crank length of the children bicycle-89mm, 102mm, 114mm, 127mm.

3. The chainwheel teeth-24T, 26T, 28T, 32T, 36T, 40T, 44T, 46T, 48T, 52T, the smallest is 24T. And our chainwheel have so many styles, if you have any other request, you can send your pictures of the products which do you want, and we also can satisfy you.

4. The triple chainring can be matched with cotter crank and cotterless crank. (152mm, 170mm*48T, 38T, 28T. ). But the plastic covered chainring only can be matched with cotterless crank.

5. The size of the double chainring is 152, 165, 170mm*40T, 48T. And the 170mm is rare.

6. The cotter crank only can be made straight. But the cotterless crank can be made straight and bent.

7. The cotter crank has three holes, that are cotterpin hole, pedal hole, axle hole
1)The B. B. Axle hole is 16 mm
2)The Pedal hole-14*1.25 mm, and the 14 mm is the diameter of the pedal hole, 1.25 mm is the gap between the thread
3)The pin hole (1)Metric: 9.0 mm (2)Inch: 9.5 mm

8. The cotterless crank only has two holes 1)The B. B. Axle hole 2)The pedal hole

9. Chainring cover have three styles
1)Iron cover, and we can make it in various colour.
2)PCS cover.
3)Plastic cover.

10. Finish- ED, CP

11. Packing as per the requirement.

12. Size-170, 165*42T, 34T, 24T.