DMR Blade 12-speed Direct Mount Boost Chainring is a purpose-built MTB chainring for modern 12-speed drivetrains, combining a stiff 4mm-thick build with chain-retention-focused tooth profiling. CNC-machined from 7075 aluminum, it targets riders who want a durable, precise direct mount option with Boost-appropriate fit for clean shifting and dependable chain control on rough trails.
CNC-machined 7075 aluminum - High-strength alloy with accurate tooth shaping for consistent engagement and long service life
4mm thickness - Adds stiffness for solid power transfer and stable chain line under load
Wide/narrow tooth profile - Helps prevent chain drop when paired with a clutch-type rear derailleur, improving security over chatter and impacts
Optimized for 12-speed drivetrains - Designed around 12s chain dimensions for reliable meshing and smoother running
Direct Mount + Boost fit - Clean, low-profile mounting for compatible direct-mount cranks, with Boost-oriented spacing for modern MTB setups
Specifications & Identifiers
Chain Compatibility
12-Speed
Chainline/Hub Compatibility
141/148 Boost Hubs
Chainring BCD
Direct Mount - SRAM
Chainring Position
Chain Retaining Single Ring
Color
Black
Defined Color
Black
Designed for ebike
No
Direct Mount Type
Direct Mount SRAM 3-Bolt
Intended Use
Mountain
Material
7075 T6 Aluminum
Offset
3mm
Round or Oval
Round
Special Features
Narrow-Wide Tooth Profile
Speeds
10-Speed, 11-Speed, 12-Speed
Tooth Count
30t, 32t, 34t, 36t
Black - 30 EAN
5055308126292
Black - 30 MPN
DMR-CW-BLADE-B-12-30
Black - 32 EAN
5055308126308
Black - 32 MPN
DMR-CW-BLADE-B-12-32
Black - 34 EAN
5055308126315
Black - 34 MPN
DMR-CW-BLADE-B-12-3
Black - 36 EAN
5055308126322
Black - 36 MPN
DMR-CW-BLADE-B-12-36
Tree Fort ID:
333222477904
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