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FSA K-Force Lite Carbon Seatpost Seatpost

3.22/5 (9 Reviews)
MSRP : $220.00

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Product Description

The FSA K-Force Light Seatpost uses one-piece continuous carbon fiber construction with FSA's Minimal Top Clamp (MTC) design. For strength and lightweight, M5 chromoly and stainless steel hardware is used in the seat clamp. The K-Force Light SB.0 features

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Reviews 1 - 9 (9 Reviews Total)

User Reviews

Overall Rating:4
Value Rating:3
Submitted by Hardsofttail a Cross Country Rider

Date Reviewed: August 31, 2012

Strengths:    A beauty

Weaknesses:    None yet
but little short as my bike has a downward slanting top tube, would be great it there was a 450mm offering

Bottom Line:   
Improvement in ride quality exceed my expectation, feel less of the bumps and vibration (on a hardtail)
design and curves just so sexy
looks a tad fragile though, have to wait for the long term test
quite expensive hence the 3 chilli for value

Expand full review >>

Bike Setup:   Cannondale flash

Overall Rating:4
Value Rating:4
Submitted by Trollbuster

Date Reviewed: July 10, 2012

Strengths:    Strong, Light, doesn't break the bank.

Weaknesses:    Seat bar clamps don't inspire confidence but they haven't broke yet.

Bottom Line:   
Graham, you're a f***kin' troll, STFU. You paid $10 on fleabay for a CARBON seatpost and it "bent" on the first ride?! F.U. you moron.
I paid $75 from a reputable dealer and the seatpost is all that it claims to be and it's f***kin' bling too :-) I have used one of these on my road bike (OEM) for three years, thousands of miles, no problems; I have no hesitation putting one on my new MTB. The only minor irritation is the potentially weak seat clamps; my other MTB has a Thomson which has a one piece, indestructible clamp. For now it's just a worry, nothing bad has happened. I'll get the stem next.

Overall Rating:1
Value Rating:1
Submitted by graham a All Mountain Rider

Date Reviewed: May 8, 2012

Strengths:    ????

Weaknesses:    bent on secound ride

Bottom Line:   
FSA S_cks,i tryed a road bar it broke,now a brand new seat post bends -JUNK

Expand full review >>

Price Paid:    $10.00

Purchased At:   ebay

Similar Products Used:   Thompson #1,UNO,Kore,bomtrager all fine

Bike Setup:   xc

Overall Rating:3
Value Rating:3
Submitted by Rich1946 a Weekend Warrior from Kernersville, NC, USA

Date Reviewed: July 22, 2008

Strengths:    Light, Looks good.

Weaknesses:    Inferior hardware

Bottom Line:   
Seems to be a well-made piece of equipment, but the seat clamp bolt, a SS 7Mx1 socket head cap screw, was inferior and dangerous. It snapped at the head for no apparent reason while riding causing the seat to fall off--almost ended up with a seatpost up my rear end or worse. Although made of stainless steel the screw was either inferior or a poor and dangerous selection for this application. To top it off try finding a metric 7x1 x 50mm socket head cap screw for the repair--so far I've had no luck.

If you have this product or plan to purchase it look at the clamp bolt very closely and consider changing it. Just because it is stainless steel it's no guarantee that it's a strong dependable fastener. There are many different alloys of ss some of which are "work-hardened" easily and become brittle.

Expand full review >>

Favorite Trail:   Salem Lake

Duration Product Used:   1 Year

Purchased At:   Came with bike

Similar Products Used:   N/A

Bike Setup:   Marin Pine Mountain with SRAM x.7/Shimano XT drive, Avid Juicy 7 brakes.

Overall Rating:3
Value Rating:3
Submitted by Jose Vigil a Cross Country Rider from San Diego, CA.

Date Reviewed: February 24, 2007

Strengths:    Nice look, great angle, sterdy and light.

Weaknesses:    Haven't noticed any weaknesses.

Bottom Line:   
I have had no negetive experiences with these FSA products.

Expand full review >>

Favorite Trail:   Many

Duration Product Used:   6 months

Price Paid:    $110.00

Purchased At:   ebAy

Similar Products Used:   Use an SLK on my Kestrel Evoke.
Use FSA Carbon Stem & DH bars on my Epic.

Bike Setup:   Specialized Epic, XTR, Time Carb/Titian pedals.

Overall Rating:4
Value Rating:3
Submitted by sapounakis a Cross Country Rider from greece

Date Reviewed: November 23, 2006

Strengths:    beautifull, practical not often carbon with rear bent
comfortable, light

Weaknesses:    fragility of vernis after impacts with stones metals
if u often change the height of the seatpost i think it will breack at the pressure zone
one is used with a spacer i think it is better

Bottom Line:   
it is ok
bit expensive
resistant till now
much more usefull on a hard tail

Expand full review >>

Favorite Trail:   x-poros

Duration Product Used:   2 Years

Price Paid:    $100.00

Purchased At:   barracuda.be

Similar Products Used:   alminium ritchey and roots

Bike Setup:   cannondale caad 3 xt mainly
lapierre evo 2 xt

Overall Rating:4
Value Rating:4
Submitted by Buc a Cross Country Rider from Fort Woth, TX

Date Reviewed: May 28, 2006

Strengths:    Flexible - carbon post dampens bumps for my 200 lbs of body and gear.
Beautiful design lines and colors.
Good design of saddle clamp area.
Saddle clamp bolt usually breaks before seat post.

Weaknesses:    Post will slip down the tube with recommended seap post clamp torque under heavy 200# load. Solution 1, tighten seat clamp bolt leading to the crushing of the post and premature fracture. Solution 2, add some sort of stick'em to the post to prevent sliding down.
Saddle clamp bolt will usually break before the seatpost.

Bottom Line:   
This is a review of the FSA K-Force Lite Carbon One-piece seatpost. This is now advertised on the FSA website as the K-Force Lite SB25. I measured 222 grams for the mass, which is a bit more than the 200 grams advertised.

I really like the design and look of the post. The weakest links are the seat post saddle clamp bolts...this is a good thing so that you break the bolt holdig the saddle before the post...this happened to me...just get and carry an extra bolt.

My post broke after 2 years at the seat post clamp. I probably put a bit too much torque on the clamp bolt because the post kept sliding down. For heavy riders I recommend using some sort of stick'em (nothing too permanent) to keep the post in place while following the FSA recommended torque limits for the seat post clamp. This is probably a concern with most carbon posts.

Expand full review >>

Favorite Trail:   Flat Creek - Austin, TX

Duration Product Used:   2 Years

Price Paid:    $100.00

Purchased At:   been too long

Similar Products Used:   Thudbuster - also absorbed bumps but weighs 490 grams.

Bike Setup:   Jamis Dragon steel hardtail, SRAM X.O drivetrain, FSA carbon bar, disc wheels/brakes, American Classic BB, Truvatic Stylo Team crank, ATAC pedals, King HS

Overall Rating:5
Value Rating:5
Submitted by Stu a Racer from Charleston, SC, USA

Date Reviewed: May 5, 2005

Strengths:    great stiffness, appearance, weight

Weaknesses:    none yet

Bottom Line:   
Fantastic so far...no complaints. And it looks bad a$$. Durability unknown since I haven't had it very long. But I have raced is several times on some fairly demanding trails...I weigh 190lbs and no problems.

If you want to get a great deal from a guy that is totally customer oriented visit downshiftcycle.com. Jared hooked me up with a great deal and provided me with loads of technical information.

Expand full review >>

Favorite Trail:   They're All Good!!!

Duration Product Used:   3 months

Purchased At:   downshiftcycles.com

Similar Products Used:   Specialized seatpost

Bike Setup:   '04Turner Burner; FSA, Marzocchi Marathon, Manitou 3-way, SRAM, San Marcos, IRC components

Overall Rating:1
Value Rating:1
Submitted by Jason a Racer from Lancaster, Pa

Date Reviewed: April 4, 2005

Strengths:    lightweight, looks good on the bike

Weaknesses:    the seatpost bolt came loose during a race, it happened before and i tightened it down i didnt think it would happen evrytime i ride the bike

Bottom Line:   
FSA makes there products look great and I must say there carbon cranks are great, but i am finding out that the rest of there product line is junk.
I will put a Thompson post on make sure my butt stays where it supposed too.

Expand full review >>

Duration Product Used:   3 months

Price Paid:    $110.00

Similar Products Used:   Thompson, easton

Bike Setup:   Turner Flux

Reviews 1 - 9 (9 Reviews Total)

Review Options:  Sorted by Latest Review | Sort by Best Rating


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