SPECS
CHAINRING SHAPE: Oval
TOOTH PROFILE: 2X w/Shifting Ramps
BCD: 110BCD
CRANKSET TYPE: FSA Asymetric 4 & 5 Arm
TEETH: 34t - 53t
DRIVETRAIN COMPATIBILITY: 9/10/12 speed
FSA - ABS PREMIUM ROAD CHAINRING - OVAL
Compatibility
- All FSA ABS (Asymmetric Bolt Spacing) cranksets, both 4 & 5 bolt versions
- Gossamer
- SL-K
- K-Force
- K-Force Light
Bolts
- For Gossamer - use original FSA bolts and spacers
- For SL-K - use original FSA bolt covers and bolts
- For K-Force - purchase absoluteBLACK bolt covers (necessary!)
What size should I choose?
- 34T inner chainring should be used with 50T outer ring
- 36T inner chainring can be used with 50 or 52T outer ring
- 38T inner chainring can be used with 52 or 53T outer ring
- 39t inner chainring can be used with 53t outer ring
FSA - ABS PREMIUM ROAD CHAINRING - OVAL
How to mount absoluteBLACK Oval chainrings to FSA ABS cranks
First, you need to remove your crank from your bike. Once removed, unscrew the 4 bolts that hold the two chainrings together with a T-30 torx key. Remove both original rings. The asymmetric bolt design will prevent mounting the rings with the wrong orientation. The bolt holes on the small chainring are recessed, so the bolt heads will sit flush with the surface of the chainring - these recesses should face you when mounting the bolts.
For Gossamer - place the big ring first on the spider, then 4 FSA spacers and then the small chainring. Tighten with original FSA bolts.
For SL-K- place the big ring first on the outer position of the spider, then place the small chainring on the inside of the spider. Use the FSA bolt covers and place them from the front on big ring (they are all identical). Tighten with original FSA bolts.
For K-Force Light- place the big ring first on the outer position of the spider, then place the small chainring on the inside of the spider. Use absoluteBLACK bolt covers and place them on the front on the big ring. Tighten with provided bolts while holding the bolt covers by hand from the other side (this is important to not to damage the bolt covers).
When mounting the absoluteBLACK 4 bolt chainring on a 5 bolt crank, leave the hidden bolt hole empty or patch it with waterproof grease. This hole is not important, hence FSA removed it with the new versions.