Sram X-Sync2 Eagle Boost Kettenblatt
- 30 teeth, direct mount
- 3 mm offset, Boost
- 11 and 12 speed (11/12-fach)
- Steel in black
- 5.6 ounces listed weight
Last refreshed Oct 3, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A small steel direct-mount ring for Boost chainlines. The specs table is short and the text is not in English.
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ASIN: B07DV3LVQQModel: SRAM-CK6512Category: Chainrings
Overview
A rider on a Boost-spaced SRAM crank with a direct-mount interface gets a small steel ring in this X-Sync 2 Eagle chainring. Its title is written in German and names eleven and twelve speed use.
A small tooth count gives easier gearing for steep climbs, and steel favors durability over weight. The listing gives few details beyond the title and a short spec table.
Who it's for
Boost mountain bikes with direct-mount SRAM cranks suit this ring. Riders wanting a larger tooth count should choose a different size.
Pros and cons
- Small tooth count for climbing
- Steel for durability
- Heavier than aluminum
- Few details listed
Performance notes
A smaller ring lowers the gearing across the cassette, which helps on steep ground. The offset sets the chain line, and the steel body resists wear.
Specifications
| Model | SRAM-CK6512 |
|---|---|
| Dimensions & fit | |
| Size | 30t |
| Item weight | 5.6 ounces |
| Capacity & performance | |
| Speeds | 11/12 |
| Construction & materials | |
| Material | Steel |
| Color | Black |
| Other details | |
| Sport Type | Cycling |
| Teeth | 30 teeth |
| Style | Direct mount |
| Chainline | Boost |
| Offset | 3 mm |
Closest rivals on specs
Sram Road Chainring Road 50T 5 Bolt 110 mm BCD Aluminium- Item Weight 0.35 vs 0.3 pounds (+17%)
SRAM X-Sync 2 Steel Direct Mount Chainring- Item Weight 0.35 vs 0.4 pounds (-13%)
Frequently asked questions
How do I install the SRAM X-Sync 2 Eagle Boost chainring?
The listing gives no install steps. It is a direct-mount ring, so it needs a crank with that interface.
Is the SRAM X-Sync 2 Eagle Boost ring for 12-speed drivetrains?
The title lists eleven and twelve speed use.
Why is the SRAM X-Sync 2 title in German?
The listing is written that way. Kettenblatt means chainring and Zaehne means teeth.
Is the SRAM X-Sync 2 Eagle Boost ring steel?
Yes. The material is listed as steel.