FSA SL-K Light Compact Crankset

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Weight: 780 grams
Price: $350

FSA SL-K Light Compact CranksetIf you’re in the market for carbon compact crankset, but don’t have the cash to burn on the pricey FSA K-Force, you’d be wise to consider the FSA SL-K Light Compact Crankset. The spider and crank arms are monocoque carbon fiber and the chainrings are made from 7075 aluminum. Stiffness is very good as you’d expect from a carbon crankset and the weight comes in at a feathery 761 grams with the bottom bracket included.

The SL-K Light differs from the K-Force in a number of ways, most of which won’t be noticed unless you’re an absolute crankset connoisseur. The carbon that makes up the SL-K is a slightly lower quality blend. The spindle is chromoly steel rather than the lighter and stonger titanium and the bottom bracket bearings are standard steel rather than the much more expensive ceramic bearings. Talk to fellow riders before upgrading to ceramic bearings. Some riders swear by them, while others see minimal if any benefits.


FSA SL K Light 386 Evo Compact Carbon Road Crankset 34 50T 170mm Red
FSA SL K Light 386 Evo Compact Carbon Road Crankset 34 50T 170mm Red
$329.99
Time Remaining: 25d 18h 16m
Buy It Now for only: $329.99

FSA SL K Light ABS 386 Evo Compact Carbon Road Crankset 34 50t 1725mm Black
FSA SL K Light ABS 386 Evo Compact Carbon Road Crankset 34 50t 1725mm Black
$329.99
Time Remaining: 2d 18h 4m
Buy It Now for only: $329.99

FSA SL K Light ABS EVO386 Compact Road Crankset 34 50t 175mm No BB 10 11 speed
FSA SL K Light ABS EVO386 Compact Road Crankset 34 50t 175mm No BB 10 11 speed
$530.99
Time Remaining: 9d 18h 7m
Buy It Now for only: $530.99

FSA SL K Light ABS 386 Evo Compact Carbon Road Crankset 34 50t 165mm Black
FSA SL K Light ABS 386 Evo Compact Carbon Road Crankset 34 50t 165mm Black
$329.99
Time Remaining: 17d 6h 1m
Buy It Now for only: $329.99



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The FSA SL-K light compact crankset gives riders a good Q-factor. Q-factor is the distance between the outer pedal holes. Keeping your feet in tighter to the bottom braket is said to create a more efficient pedal stroke and reduce drag. The increased aerodynamics would probably only benefit you if you’re a committed triathlete or time trialist. The SL-K uses the same internal I-Beam construction as the K-Force to enhance strength and rigidity while keeping the weight low.

A 50 tooth outer ring and a 34 tooth small ring gives climbers the widest possible gearing without having to go to a triple. The clean lines and bold graphics are appropriate for riders looking to make a statement. Those that value subtlety may find the graphics a little obnoxious. Competitive riders looking for an edge while keeping some money in the bank for race entry fees, will find the FSA SL-K Light compact crankset a good combination of value and performance.

One Review for “FSA SL-K Light Compact Crankset”

  1. Vic says:

    Amazing crankset. I’ve had the FSA-K Light for over a year and I’m very happy. Looks cool, super stiff and very light. I’m using it with a full Ultegra group and it works pretty much flawlessly. Did a trip to Colorado last fall and the compact gearing was a lifesaver. I wasn’t in the best form of my life, but was able to hang on even during some massive climbs.

    This compact crankset is an excellent value when you compare it to Campy and Shimano cranksets of a similar weight.

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