








Round Boost for SRAM 8-bolts MTB
Shipping and processing
Processing time: up to 10 business days. Shipping time: 2 to 7 business days. Provided by FedEx
Return policy
You can return an unused product within 30 days










Technical specifications
| MTB bikes | |
| BOOST; 26T-36T 3,0mm; 38T-42T 2,0mm | |
| 26T- 115mm; 28T- 124mm; 30T- 131,5mm; 32T- 138,6mm; 34T- 148mm; 36T- 154,2mm; 38T- 161,3mm; 40T- 171mm; 42T- 179mm | |
| 26T-36T 52,0mm; 38T 53,0mm | |
| 26T- 47g; 28T- 52g; 30T- 57g; 32T- 63g; 34T- 70g; 36T- 75g; 38T- 80g; 40T- 84g; 42T- 93g | |
| Aluminum 7075-T6 | |
| CNC milling | |
| Anodizing |
Compatibility
MTB chainrings you may use the following chains: SRAM chains - 11sp, 12sp Eagle, 12sp T-Type; Shimano chains - 11sp, 12sp HG+ |
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For cranks MTB SRAM 8 bolts Direct Mount, BB spindle interface: DUB; In the case of using the 3mm offset chainring with MTB Standard axle type cranks, the chain line will be 52mm (the hub spacing (O.L.D.) is 148mm) In the case of using the 3mm offset chainring with MTB WIDE axle type cranks, the chain line will be 55mm (the hub spacing (O.L.D.) is 148mm) |
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| Optimal use with rear hubs 148mm (O.L.D.) |
Recommendations
- Use the screw set M4x8mm to mount on the crank
- 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
- It is recommended to use a well-lubricated chain on every ride
Engineering excellence












