Burgtec 4-bolt 104mm BCD Oval Thick Thin Chainring

If you want to try an oval ring on a four-bolt 104mm BCD crank, this is Burgtec's 32t option.

The oval shape is intended to shorten the less productive part of the pedal stroke. Burgtec pairs it with a thick/thin tooth profile to help keep the chain in place.

The threaded bolt holes require M8 x 0.75mm x 8mm chainring bolts. Burgtec's sizing advice is to start with the same tooth count as your current round ring.

Fitting details

• CNC-machined 7075 aluminium.
• Burgtec lists compatibility with 10-, 11- and 12-speed drivetrains.
• 32t only.
• Thick/thin tooth profile with Mud Bleed.