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FSA K-Force Light SB25 Seatpost

3.5/5 (2 Reviews)


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Product Description

-Italian styling
-25mm of setback
-1-piece continuous carbon fiber construction
-DATA™ (Dual Adjust Tilt Angle) security system
-M5 chromoly and stainless steel hardware
-L350 x Ø27.2, 29.4, 31.6mm
-200 grams


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Reviews 1 - 2 (2 Reviews Total)

User Reviews

Overall Rating:3
Value Rating:3
Submitted by beau miller a Cross Country Rider from hon, hi, usa

Date Reviewed: August 21, 2006

Strengths:    Great offset for some applications. Beautiful finish.

Weaknesses:    Uses a set of teeth and friction to sandwich the saddle tilt position, the same system as the cheapest posts on the market. Those post don't hold position, and this one doesn't either.
It looks like the Thomson two bolt system, but it's not. If you look close at the FSA there are three pieces and teeth holding the saddle position. Thomson system uses two pieces. The result with the FSA is if you hit a big bump, the saddle will slip the teeth and instantly rotate WAY out of the usable postion. This is impossible with the Thomson type posts, as the bolts, rather than teeth, are holding the saddle in position.

Also, not the lightest post. Considering the poor reliability, the heavyish weight has has no positive trade-off.


Bottom Line:   
Cost me 5 minutes and and a dozen places in my last race (an A race), as the posts saddle mount slipped on the final loop.

The 25mm offset can be found with other posts with better clamping systems, look around.

Such a shame that they couldn't just fuse the 3 mount pieces down to 2 like the Thomson system. As it is now, this post is kind of a POS.

Expand full review >>

Favorite Trail:   Sasquatch

Duration Product Used:   Less than 1 month

Purchased At:   e-bay

Similar Products Used:   Every cheap post on the market, as they all use the same type of clamping system as this post.

Bike Setup:   Scalpel.

Overall Rating:4
Value Rating:5
Submitted by Riley a Cross Country Rider from Steamboat Springs, CO, USA

Date Reviewed: July 2, 2006

Strengths:    Stiff and light. Looks awesome. Dampens vibrations very well.

Weaknesses:    None

Bottom Line:   
I have been a Thompson seatpost user for most of my Mt. Biking career. A friend suggested I try carbon. I didn't save much weight but the vibration dampening was great. Seatpost is very simliar to my Thompson seatpost as both have about 25 mm of rear angle. I have been very happy with the product. I have the 31.8 and have not had any slippage or any other problems. This is a good upgrade to any bike. Can be costly but if you shop around you can get a deal.

Expand full review >>

Favorite Trail:   Any in Steamboat

Duration Product Used:   3 months

Price Paid:    $125.00

Purchased At:   LBS

Similar Products Used:   Thompson

Bike Setup:   Stumpjumper Pro, Full XTR build, Crossmax SL's with Maxxis Crossmark UST. FSA seatpost, stem and saddle.

Reviews 1 - 2 (2 Reviews Total)

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