ABSOLUTE BLACK Oval FSA K-Force SL-K 110 BCD chainring

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 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 EU.

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 rigns.

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.

Size (Mass +/-1g):

34T (32g), 36T (33g), 38T (38g), 39T (41g), 50T (115g), 52T (132g), 53T(134g).

Ovality:

Optimized to each size separately.

34T- 3.5%.

36T, 38T, 39T- 11.4%, 50/52/53T - 10-11.2%.

Timing of 108 -110.5° after TDC (top dead center) - Ideal for road climbing.

Patent Pending.