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FSA OS-115 Stem

4.33/5 (3 Reviews)


Product Description

-Length-specific wall thickness + extensive CNC detail for weight savings
-100% CNC machined final shape for maximum tolerance control.
-Cold forged body in AL7075/T6 for optimum grain alignment.
-Shot-peened shaft for maximum fatigue life
-Carbon fiber composite 4-bolt front clamp
-Ti 6/4 hardware with TiPrep™
-Sizes: ± 6° x L90, 100, 110, 120, 130, 140mm
-Sizes: -17° x L90, 100, 110, 120, 130mm
-Sizes: 0° x L70mm
-Ø31.8mm handlebar clamp only
-35mm fork clamp stack height
-138 grams


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Reviews 1 - 3 (3 Reviews Total)

User Reviews

Overall Rating:4
Value Rating:4
Submitted by kovaldesign a Weekend Warrior from London

Date Reviewed: April 20, 2009

Strengths:    light, stiff, good looking

Weaknesses:    FSA spec sheet says the stem comes with Ti 6-4 hardware with TiPrep?
Whatever that means the bolts are not Titanium at all - I removed them and weighted, they came the same weight as steel bolts.
The Carbon looking clamp is heavier than aluminium Thomson clamp.


Bottom Line:   
No doubts one of the best looking, fairly stiff, versatile and pretty light stem on the market at reasonable price - if you can buy is off EBay.
Disappointed with detail like bolts not actually Titanium and HEAVY carbon clamp.
Excellent stem for road or XC riders but if you do All Mountain and still require 90mm long stem I would probably go with some extra cash a buy the Thomson X4 of Gravity Light (former FSA FR-200).

Expand full review >>

Duration Product Used:   3 months

Price Paid:    $50.00

Purchased At:   ebay UK

Similar Products Used:   Thomson X4, which I found stiffer and even better looking.

Bike Setup:   do-it-all MTB HT

Overall Rating:4
Value Rating:3
Submitted by Alex a Racer from Pasadena, CA

Date Reviewed: December 15, 2005

Strengths:    super stiff, respectably light, nice 4-bolt faceplate design, clean lines

Weaknesses:    kind of pricey, have to be extra careful with Ti hardware (use finish line ti-prep)

Bottom Line:   
a solid stem for sure. it may not be the lightest, but it certainly is damn sturdy for 135 grams. i'd run it road or mountain.

Expand full review >>

Duration Product Used:   3 months

Price Paid:    $40.00

Purchased At:   my buddy

Similar Products Used:   Ritchey WCS, Bontrager, Syntace

Bike Setup:   on my roadbike... Cannondale w/ ultegra 10, Dura-Ace Wheels

Overall Rating:5
Value Rating:5
Submitted by Ross a Cross Country Rider from UK

Date Reviewed: August 31, 2005

Strengths:    Bloody light, killer looks, titanium bolts, finish is amazing

Weaknesses:    None

Bottom Line:   
Amazing as you can see i had the stems below this one and whilst there good, there not as good as this. Its amazin, looks amazing with fsa xc 190 bar. Another top quality fsa product

Expand full review >>

Duration Product Used:   Less than 1 month

Price Paid:    $30.00

Purchased At:   ebay

Similar Products Used:   Fsa xc 170 and fsa xc 140

Bike Setup:   Top quality gary fisher hardtail wights 23lbs

Reviews 1 - 3 (3 Reviews Total)

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