BAFANG 36T/38T/40T/42T/44T/46T/48T/52T Chain Wheel for BBS/BBSHD Mid-drive Motor CNC Chainring Sprocket Electric Bicycle Parts

BAFANG 36T/38T/40T/42T/44T/46T/48T/52T Chain Wheel for BBS01 BBS02 BBSHD Mid-drive Motor CNC Chainring Sprocket Electric Bicycle Parts

Suitable for replacement of Bafang central BBS / BBSHD 1000W central motor crankset

Number of teeth: 42 teeth (positive tooth thickness 3.6mmx21/negative tooth thickness 1.9mmx21)

Maximum diameter: 175mm

Maximum height: 19.5mm

Tooth pitch: 12.7mm

Threaded hole diameter: 5.2mm

Inner hole diameter: 41.2mm

Surface treatment: sandblasting + anodizing

Surface roughness: about 120 mesh

offset :

BBS 36T 38T 40T:offset 2mm

BBS 42-52T:offset 14mm

 BBSHD:offset 24.5mm 

Material:7075 aluminum alloy

colour:Black

Package : 1PCS  Chainring

FOR: BAFANG BBS01/BBS02 250W 750W / BBSHD 1000W

BAFANG BBS01/BBS02 42T Aluminum AL7075 BLING RING narrow wide tooth pattern chain wheel (compatible with 7 speed chain)

44T/46T/48T/52T Iron chainwheel used for Bafang BBS01/BBS02/BBSDH mid drive motor chain ring sprocket wheel crank set