FSA K-Force Carbon Cranksets


  • Average Rating: 2.11/5
  • MSRP: $ 500.00
  • # of Reviews: 45

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Product Description

The K-Force is a marvel because it goes where Shimano fears to tread: Its arms and spider use monocoque carbon fiber construction to keep weight to a minimum and even though it's made from carbon, your wallet doesn't get punished. Since it comes with FSA's MegaExo alloy BB, your bottom line for the FSA combo is only a few dollars more expensive than Dura-Ace.


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Reviews 1 - 5 (45 Reviews Total) | Next 15

User Reviews

Overall Rating:5
Value Rating:5
Submitted by tonypet69 a Road Racer from

Date Reviewed: November 1, 2011

Strengths:    Excellent power transfer, precise shifting, lightweight, A looker, Great bottom brackets

Weaknesses:    I guess the alloy plating on the fairing of the big chainring. Which is starting to build up salt.

Bottom Line:   
Great product, I have nothing but good words for FSA cranks. stiff, light, aesthetics, durability, great bearings, reliable shifting. I never turned back since I started with my first set which is the Gossamer, then the Carbon Pro team Issue, I have a k-Force light as well and a K-Force on my mtb.

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Favorite Ride:   Santiago Canyon

Purchased At:   Colorado Cyclist

Similar Products Used:   Shimano Tiagra, Duraace, Deore, Deore XT

Bike Setup:   Bianchi B4P 928 lugged, Full Duaraace 7900 except for the K-Force cranks and brakes. ITM 101 cockpit an post, San Marco Aspide saddle, Mavic R-Sys wheels, Continental GP tires


Overall Rating:2
Value Rating:1
Submitted by 3djock a Road Racer from

Date Reviewed: January 10, 2011

Strengths:    none

Weaknesses:    weak on the left side crank mount wears out to quickly and becomes loose after time. Tend to flex and creak quite a bit..

Even had problem with alignment of the chain rings which was due to bad production.


Bottom Line:   
I have gone thru to sets of these in the past 2 years they are garbage period. The left side crank even after their recommendation how 2, came lose and failed twice. They need to go back and re engineer these things if they want to keep customers in the near future. Would not recommend to anyone.

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Favorite Ride:   BMC

Price Paid:    $275.00

Similar Products Used:   Rotor now..



Overall Rating:4
Value Rating:4
Submitted by alancross a Recreational Rider from

Date Reviewed: November 4, 2010

Strengths:    Very good looking
Light
Smooth BB
Fairly stiff crank arms
Really stiff chain rings


Weaknesses:    Unclear instructions for tightening. I tightened to Nm specs originally but that wasn't enough.

Bottom Line:   
Bought this crankset to replace a Bontrager XXX Lite. 175mm length/2009 model. I've got about 2000k on the set so far and have not experienced any of the problems with pedal loosening. The BB has worked very well. The install instructions were explicit on how much to tighten the crank arm. Initially this left the wavy washer not compressed enough which led to creaking over some time. I went back and tighten the hell out of the crank arm. The wavy washer is not full compressed (flat) which it shouldn't be but the creaking went away and the crankset works flawlessly now. It is a substantial weight savings over previous crank/bb set up and I've been very happy with it aside from the initial lack of tightening.

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Favorite Ride:   Beartooth Pass

Price Paid:    $450.00

Purchased At:   online retailer

Similar Products Used:   Bontrager XXX lite
Ultegra 6500 and 6600
SRAM Rival


Bike Setup:   BMC SLT01
SRAM Red drive train
DA Cassette - 7900
DA Chain - 7900
Mavic Race Ti pedals
404 clinchers
TRP brakes


Overall Rating:2
Value Rating:2
Submitted by Bernhard Gustafsson a Road Racer from

Date Reviewed: October 9, 2010

Strengths:    Light
Looks


Weaknesses:    Pedals comes loose


Bottom Line:   
Left pedal start to feel loose after 4 years of use. Noticed that the 'thread insert' was loose in the crank arm. It is probably due to a poor gluing between the carbon arm and the metal insert.

Expand full review >>

Similar Products Used:   Campagnolo Athena

Bike Setup:   Fondriest Clarus carbon frame
Campagnolo Chorus power train
Campagnolo Eurus Wheels


Overall Rating:1
Value Rating:1
Submitted by Jon Perkins a Road Racer from

Date Reviewed: July 10, 2010

Strengths:    Looks good

Weaknesses:    Structural weakness
Pedal arm "insert" breaks and comes loose.
Pedals fall off
Pedal arm breaks


Bottom Line:   
For the 3rd time since using the SLK-Light Crankset I have had a major failure, of the inner crank arm "pedal insert". After a few thousand miles it comes loose, creaks - and then falls off. The first two times I returned and FSA exchanged it. Now I cant even get FSA on the phone. This product has been a problem from day one. Stay away from this piece of junk!!! And FSA - I'm never buying another one of your products again. Its just not worth the effort.

Expand full review >>

Favorite Ride:   Bianchi

Price Paid:    $4300.00

Purchased At:   Beyond Bikes

Similar Products Used:   Dura-Ace (no problems)

Bike Setup:   Bianchi Cyclocross



Reviews 1 - 5 (45 Reviews Total) | Next 15

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Issues with K-Force Carbon Crankset Install

Recieved a new set of Carbon K-Force Compact cranks today and ran into a snag on the install. I got the new mega-exo bottom bracket in with no issues. After sliding the drive-sid   Read More »

FSA K- Force Carbon for Cross?

I have access to a new K-force Carbon Crankset for the low-low and was wondering if there would be any issues for running them on my cross bike? I'm running the FSA Gossomers n   Read More »

FSA K-force Carbon Stem Question

[IMG]http://www.tredz.co.uk/ProdImg/16813_1_large.jpg[/IMG] I just picked up a carbon stem with a 6 degree decline. All the stems I have had to date have a 6-8 degree incline/de   Read More »

Replacement for FSA K Force carbon Stem

I have a FSA 110mm K Force Carbon stem on my bike. It has a minus 6 degree angle. I need a 100mm stem and would like to get another K force stem... however they are discontinued   Read More »

Looking for new bars. FSA K force carbon compacts or 3T Ergonova Team carbon

Looking at going with some carbon bars that have a shorter drop. My Deda Newtons ar a little too much of a drop for me at 142mm. Either going with the FSA K force compact carbons o   Read More »

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