Bikes
Norco
Optic
2025
Optic A2
Drivetrains

Drivetrains that fit the Norco Optic A2 2025

Now on your bike: Shimano Deore RD-M6100, 12sp

Your trim

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Optic A1
Optic A2
Optic C1
Optic C2
Optic C2 MX
Optic C3

← All parts for the Norco Optic A2 2025

We don’t sell anything — we help you choose.

Recommendations, not a guarantee: fit is checked against the standards we know for your bike. Confirm with a mechanic before you install anything.

Shop links may earn us an affiliate commission at no extra cost to you. Picks are ranked by fit, performance and value — never by commission.

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Max price, CAD

Brand

Fits 3

Every standard that matters is recorded for your bike and the part, and they match.

Budget
CA$140.001 Canadian shop
Shimano SLX M7100 12-speed Cassette 10-51T
Get: 10-51T
Check price at TBS Bike Parts
Budget
CA$279.951 Canadian shop
Shimano Deore M6100 1×12 Groupset (no crank)
Get: 1×12, 10-51T
Check price at bikecomponents.ca
Mid-rangeUpgrade
CA$819.951 Canadian shop
Shimano Deore XT M8100 1×12 Groupset with Crank
Get: 1×12, 10-51T
Check price at bikecomponents.ca

May fit — check 2Show

A standard these need isn’t recorded for your bike or the part. Each card says what to check.

Mid-range
CA$586.951 Canadian shop
SRAM NX Eagle 1×12 Groupset with Crank
Get: 1×12, 11-50T, HG
Check on your bike first
- Needs a HG freehub — your wheel has MICROSPLINE. Needs a driver swap (if your hub offers one) or a new wheel.
Check price at bikecomponents.ca
TopUpgrade
CA$1,299.951 Canadian shop
SRAM GX Eagle Transmission AXS Groupset with Crank

Get: 1×12, 10-52T, XD

Check on your bike first

Needs a XD freehub — your wheel has MICROSPLINE. Needs a driver swap (if your hub offers one) or a new wheel.

Check price at bikecomponents.ca