Burgtec Thick Thin Chainring 104mm BCD E-Bike Steel 32t

The Burgtec 104mm BCD Thick Thin Chainring in steel is built for the punishing demands of e-MTB riding. Standard aluminium chainrings get chewed up fast under the sustained torque of a motor-assisted drivetrain — this steel version holds its edge far longer, keeping your chain running cleanly for significantly more kilometres. The inside fit design positions the chainring correctly on Shimano 4-bolt, 104mm BCD cranks, while the thick-thin tooth profile locks the chain in place when the trail gets rough and the power comes on hard. Pair it with a clutch derailleur and chain drops become a non-issue.

Design Features

• Steel construction engineered to handle the high torque output of e-bikes — dramatically more wear-resistant than aluminium alternatives under motor-assisted loads
• Thick-thin tooth profile alternates wide and narrow teeth to engage the chain precisely, preventing drops on rough and technical terrain
• Inside fit mounting geometry delivers a clean, optimised chainline on Shimano 4-bolt 104mm BCD cranks
• Designed to work in tandem with clutch rear derailleurs for a belt-and-braces approach to chain retention on aggressive trails
• 32t tooth count offers a versatile gear range suited to the mixed climbing and descending demands of trail e-MTB riding

Specifications

• BCD: 104mm
• Tooth Count: 32t
• Material: Steel
• Mounting: Inside Fit, 4-bolt
• Crank Compatibility: Shimano 4-bolt 104mm BCD
• Application: E-Bike specific