Specifications:

Teeth: 42T /34T / 24T, Speed: 24 speed (3 x 8 Speed),21 speed (3 x 7 Speed),18 speed (3 x 6 Speed)
Crank length: 152mm/165mm/170mm
BCD: 104mm(42T/34T) / 64mm(24T), square hole
Material: 42T (Steel), 34T/24T steel.
square taper BB .compatible 120mm~124mm
Compatible Speed:6/7/8/9S,18/21/24/27 Speed
Chain Line:48.5mm
weight:approx 800g
Suitable for most of 18/21/24 Speed MTB Mountain Bike.

---------------------------------------------
2 Years Quality Assurance
----------------------------------------------

Package Include:

1 x 24-34-42T Crankset (BB not included)
1x Plastic Chainguard
2x Plastic Crank Screw Dust Proof Cover

FAQ

Q: What is the size of crankset?
A: 24-34-42T

Q: What is the lenght on this arm?
A: 3 sizes available ,152/165/170mm, please select proper crankset you need

Q: Does this Crankset come with Bottom Bracket?
A:No

Q: What pedal size does this Crankset work with? 9/16 or 1/2?
A: 9/16"

Q: What is the BCD of this Crankset?
A: 104BCD(34T ,42T), 64BCD(24T)

Q: Is the crank arm removable?
A: No ,it is Riveted Triple MTB chainset

Q: Does this work on a square taper Crankset?
A: It is a crankset made for square taper bottom brackets

Q: What size bottom bracket should be used for mountain bike?
A: 120mm~124mm