SRAM Pg-1230 Nx Eagle 12-Speed Cassette
- 12-speed, 11-50T range
- Standard splined freehub, no XD driver
- 50T bailout gear, PowerGlide II profile
- All steel cogs, rated for E-MTB
- 0.6 kg listed weight
- 2 year manufacturer warranty
Last refreshed Oct 3, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A steel Eagle cassette for standard splined freehubs, rated for E-MTB use. The smallest cog has one tooth fewer than the XD style.
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ASIN: B07DQP71JSModel: CRR454Category: Cassettes & Freewheels
Overview
SRAM engineered this NX Eagle cassette to work on a normal splined freehub body, so no XD driver is needed. It is built from steel cogs with a PowerGlide II tooth profile and ramp design.
A wide range and a large bailout gear make steep climbs easier, and steel construction supports heavy use including electric mountain bikes. Giving up one tooth on the smallest cog changes top-end gearing very little.
Who it's for
Riders with a standard splined freehub and a twelve-speed drivetrain, including e-bike users, are the match. Those on a different speed count need another cassette.
Pros and cons
- No XD driver needed
- Large bailout gear
- Steel cogs for durability
- Rated for E-MTB use
- Smallest cog has one tooth fewer
- Heavier than aluminum cassettes
- Tooth count field is garbled
Performance notes
PowerGlide II tooth shapes and ramps guide the chain from cog to cog, which is what makes shifts smooth under load. Steel cogs resist wear under the torque of an electric assist.
Specifications
| Model | CRR454 |
|---|---|
| Dimensions & fit | |
| Item weight | 0.6 kg |
| Capacity & performance | |
| Speeds | 12-speed |
| Cog range | 11-50T |
| Construction & materials | |
| Material Type | Steel |
| Color | Black |
| Warranty & support | |
| Warranty Description | 2 year manufacturer |
| Other details | |
| Freehub type | Standard splined, no XD driver |
| Tooth profile | PowerGlide II |
| Intended use | E-MTB rated |
Closest rivals on specs
SHIMANO 105 Cs-R7101 12-Speed Cassette Silver- Item Weight 1.32 vs 1.1 pounds (+20%)
Shimano Cassette Sprocket- Item Weight 1.32 vs 1.64 pounds (-20%)
Shimano CS-M4100 Deore Cassette 10 Speed- Item Weight 1.32 vs 1 pounds (+32%)
Frequently asked questions
How do I care for the SRAM PG-1230 NX Eagle cassette?
The listing gives no care instructions. It says all steel cogs improve durability.
Does the SRAM PG-1230 need an XD driver?
No. It works with normal splined freehub bodies.
Can the SRAM PG-1230 be used on an e-bike?
Yes. The description says it is rated for E-MTB use.
Does the SRAM PG-1230 have the same top gear as other Eagle cassettes?
The description says it has one fewer tooth on the smallest cog to suit the splined freehub, which it calls almost negligible for top-end gearing.