Shimano go to great lengths to test their products extensively before adding them to the XTR range.
The Shimano XTR SM-CRM91 Chainring is designed to be run on a 1x11 platform and is compatible only with Sil-Tec chains and the race (M9000) and trail (M9020) XTR cranksets. Keeping that in mind, its' new XTR tooth profile on the SM-CRM91 reduces chain noise and drag to a minimum and also aims to make chain guides obsolete thanks to Shimano’s proprietary chain retention technology. The 'up-side' of all this means that with reduced likelihood of dropping a chain you’ll spend less time fixing first-world chain problems and more time dominating the trail.
Reduces chain noise and drag to a minimum
Designed to be run on a 1x11 platform
Compatible with FC-M9000 / FC-M9020-1 Crankarms only
Compatible with Shimano HG-X11 speed Chain
Compatible with Sil-Tec chains only
Dynamic Chain Engagement (DCE chain retention technology) helps prevent chain jump out
Tall, broad stainless steel tooth profile keeps your chain glued to the ring
30t and 32t rings are solid
Added benefit of carbon fibre on the rear face
Material: Carbon-reinforced Titanium Alloy
Teeth: 30 Single (w/Gear Spacer)
Type: single (1x11 speed)
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