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Round AERO Thread Mount 6,5mm Road/GravelSRAM 8-boltsUltegraAERO cover

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Close-up of silver natural-finish ALUGEAR Shimano direct-mount 12sp MTB chainring teeth, wave-machined surface
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Close-up of orange anodized ALUGEAR Shimano direct-mount 12sp MTB chainring teeth, wave-machined surface
Close-up of green anodized ALUGEAR Shimano direct-mount 12sp MTB chainring teeth, wave-machined surface
Close-up of gold anodized ALUGEAR Shimano direct-mount 12sp MTB chainring teeth, wave-machined surface
Close-up of purple anodized ALUGEAR Shimano direct-mount 12sp MTB chainring teeth, wave-machined surface
alugear

Oval Boost for Shimano DM 12sp. MTB

Chainring 1-speed direct mount narrow-wide Oval for Shimano DM 12sp MTB Boost Xtrect 3 mm offset

Sale price$80.00
Color: Black
Size: 26T
In stock
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You can return an unused product within 30 days
Red anodized round ALUGEAR boost MTB chainring, Shimano direct-mount 12-speed, angled view showing spoke cut-outs
Oval Boost for Shimano DM 12sp. MTBBlack / 26T Sale price$80.00
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Technical specifications

Intended use
 MTB bikes
Offset
 26T-38T 3,0mm
Diameter
 26T- 120mm; 28T- 128mm; 30T- 136mm; 32T- 144mm; 34T- 152mm; 36T- 162mm; 38T- 170mm
Chainline
 26T-38T 52,0mm; 55,0mm; 56,5mm (depending on used crank)
Weight
 26T- 46g; 28T- 51g; 30T- 57g; 32T- 62g; 34T- 69g; 36T- 73g; 38T- 79g
Ovality
 12%
Timing
 108° (top dead center)
Material
 Aluminum 7075-T6
Made
 CNC milling
Surface coating
 Anodizing

Compatibility

Chains
 MTB chainrings you may use the following chains: all 10sp; 11sp; 12sp Shimano Hyperglide+ and 10sp, 11sp, 12sp SRAM.
Cranks

For Shimano Direct Mount 12 speed cranksets: XTR M9100/9120/9125/9130, XT M8100/8120/8130, SLX M7100/7120/7130, Deore M6100/6120/6130, MT900, MT610.; 

Cranksets M9100 /9120 , M8100, M7100, M6100, MT900, MT610 will use with a Boost chainring (3mm offset), and it is compatible with 142 mm or 148 mm O.L.D. frames.; 

Cranksets M9125, M8120, M7120, M6120 have a longer spindle and also use a Boost chainring (3mm offset). It is compatible with 148 mm O.L.D. frames.; 

Cranksets M9130, M8130, M7130, M6130 have an even longer spindle and also use a Boost chainring (3mm offset). These cranks should use with 157 mm O.L.D. frames.

Recommendations

  • We recommend 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.

Installation Instructions

Oval Alugear chainring installation Download

7075-T6

Aerospace grade aluminium

Narrow-wide

Unique tooth profile designed specifically for 1x chainrings, eliminates noise, reduces wear, and ensures reliable chain retention

8+ colours

Match your bike with multiple anodized options

Information

Engineering excellence

ALUGEAR chainrings are some of the lightest chainrings on the market. Using our experience and vigorous testing, we 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. The tooth profile is specially designed for use with MTB chains. ALUGEAR chainrings are the best choice if you are looking for a technologically sound chainring with a unique design and low weight.

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