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Alugear Narrow Wide Chainring - Oval - 104 BCD - 4-Bolt

Alugear Narrow Wide Chainring - Oval - 104 BCD - 4-Bolt

ALUGEAR oval chainrings are some of the lightest chainrings on the market. Using experience and vigorous testing, Alugear tweaked the arm design and strategically machined the chainrings so that only minimal sacrifices were made in impact strength in exchange for large gains in weight reduction.

The chainrings are CNC machined from 7075 T6 aluminum and hard coat industrially anodized to provide protection from mechanical impacts, a good look, and an excellent tactile feel to each of the chainrings that lasts a long time. A unique tooth profile eliminates chain noise, reduces wear, and provides smooth operation on the entire system of all the most common combinations, such as 10, 11, and 12-speed drives. The Narrow Wide teeth guide the chain reliably.


Technical Specifications of the Alugear Narrow Wide Oval Chainring:

  • Weight: 30T- 31g; 32T- 34g; 34T- 42g; 36T- 48g; 38T- 54g
  • Diameter: 30T- 136mm; 32T- 144mm; 34T- 152mm; 36T- 162mm; 38T- 170mm; 40T- 178mm; 42T- 186mm; 44T- 194mm; 46T- 202mm; 48T- 210mm
  • Timing: 108°
  • Ovality: 12%


  • Fits 4-arm cranks with 104mm BCD.
  • The tooth profile of the 32-38t. Chainrings specially designed for MTB chains.
  • The tooth profile of the 40-48t. Chainrings specially designed for road chains.
  • compatible chains for MTB: all 10-, 11-, 12-speed SRAM Eagle and Shimano
  • compatible chains for road bike / gravel: all 10-, 11-, 12-speed SRAM, Shimano, Campagnolo


  • Alugear recommends the use of a clutch system rear derailleur for the best chain security.
  • It is also a good idea to use a new chain with your new ALUGEAR chainring.
  • For mounting the 32 tooth chainring 8mm screws (M8) are required. The other chainring sizes require 6mm screws (M6)

Note: Please see image with installation information for oval Alugear chainrings.


Fact Sheet of Alugear Narrow Wide Chainring - Oval - 104 BCD - 4-Bolt

Product Name: Alugear Narrow Wide Chainring - Oval - 104 BCD - 4-Bolt
Manufacturer: Alugear
Item Code: ALU546003
activity: Cycling
material: Aluminium
usage bikesport: MTB, Allroad / Gravel
shifting system: 10-speed, 11-speed, 12-speed
MTB - bolt circle diameter: 104mm
Road - bolt circle diameter: 104mm
chainring version: Narrow-Wide (1-speed), oval
Model year: 2022
Collection: Full year
Color: Black
Manufacturer page: