Round ELM for Shimano Direct Mount BOOST 12sp

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Technical specifications

Weight: 26T- 40g; 28T- 43g; 30T- 52g; 32T- 57g; 34T- 62g; 36T- 66g; 38T- 72g

Offset: 26T-38T – 3,3mm

Chainline: 26T-38T – 52mm

Chainring diameter: 26T- 115mm; 28T- 124mm; 30T- 131,5mm; 32T- 138,6mm; 34T- 148mm; 36T- 154,2mm


The original design ALUGEAR “ELM”.

The chainring is for Shimano Direct Mount cranks. Сompatible with cranksets 12 speed series.

This chainring is mounted with one nut (bottom bracket installs tool) to the back of one of the crank near the axle.

Our chainrings feature unique tooth profiles design for chain retention, mud clearance and the best wear life.  Wide mud clearance and maximally chamfered chamfers which prevents mud from adhering and accumulation as resulting in reduces friction.

The tooth profile for optimal performance use with Shimano 12-speed Hyperglide+ chains.



For cranksets series: XTR M9100/M9120, XT M8100/8120, SLX M7100/7120, MT900.

The chainrings can be used with the following drivetrains: 1×10, 1×11 and 1×12.

With Shimano Direct Mount MTB chainrings you may use the following chains: all 10sp, 11sp, 12sp SRAM Eagle and 12sp Shimano chains.


26T, 28T, 30T, 32T, 34T, 36T, 38T


Black, Blue, Green, Orange, Red, Silver