absoluteBLACK Premium Oval chainrings for FSA ABS (asymmetric bolt spacing) cranks like Gossamer SL-K K-Force. This model fits all 4 and 5 bolt design cranks. 4&5 bolt cranks are identical except the one hidden bolt behind the crank arm in 5 bolt design which is not needed. These are the finest FSA compatible chainrings on the market in terms of shifting stiffness smoothness of pedaling and manufacturing quality. 10/11/12spd compatible. Di2 Compatible. Made in the EU
Size (Mass +/-1g): | 34T (32g) 36T (33g) |
Color | Black |
Compatibility |
All FSA ABS (asymmetric bolt spacing) cranks like Gossamer SL-K K-Force K-Force Light. Both 4 and 5 bolt versions. One model fits them all. Di2 Compatible. 10 / 11 / 12spd compatible. ABS cranks only. |
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!) |
Material & Finish | CNC machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing |
Ovality |
Optimized to each size separately. 34T- 3.5% ; 36T- 11.4%; |
IMPORTANT:
*For Gossamer cranks – use original FSA bolts and spacers. There is nothing else needed to mount these rings
*For SL-K – use original FSA Bolt Covers and bolts that will fit perfectly. There is nothing else needed to mount these rings
*For K-Force – purchase additionally absoluteBLACK bolt covers. This is absolutely necessary as you will not be able to mount these chainrings to K-Force otherwise.
*Ramps on big rings are specially configured for combinations: 50/34 52/36 52/38 53/39T
* If you wish to use other configuration it will also work but shifting will be slower and may require more “”adjustments”” of front dérailleur to be acceptable. Also remember that front dérailleur can only accept max 16T difference between 2 chainrings – this is how Shimano and Sram designed them.