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  • SRAM Force Medium Cage WiFli Rear Derailleur
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SRAM FORCE Rear Derailleur WiFli- Medium

by Sram

List Price: $134.00
Price: $122.18 & FREE Shipping. Details
You Save: $11.82 (9%)
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
Silver Black
Medium Cage WiFli
  • Carbon-fiber outer cage and magnesium inner link provide strength and light weight
  • Exact Actuation means precise, even gear changes throughout the shifting range
28 new from $119.38

There is a newer model of this item:


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Product Description

Other than the Double Tap shift lever, perhaps no component in the SRAM road component family represents a greater departure from familiar mechanical territory than the Force Rear Derailleur. It's a bit of a technical story, but it's one whose benefits are evident the first time you run through your gears: You'll experience crisper, more precise shifting than you've ever felt before. Virtually every rear derailleur you've ever used, pre-Force, was built around 3 springs: The B-position spring, the pivot spring, and the parallelogram spring. What SRAM learned as they developed their rear derailleur, though, was that a 2-spring system built with more powerful springs outperforms the 3-spring standard. By eliminating the B-position spring and fixing your derailleur's B-position in place, the Force derailleur better manages the gap between the guide pulley and your cassette cog. The stout strength of the springs is directly related to the inherent mechanical advantage of the Force Double Tap shifter. Strength requires strength, and it results in punchy, quick shifts. The other half of the story is SRAM's Exact Actuation technology. Most rear derailleurs pull slightly different amounts of cable depending on which end of the gearing spectrum they're in. You can feel this when the first few cogs of your non-SRAM system shift perfectly, and then the shifts are off. With Exact Actuation, the Force derailleur pulls the same amount of cable (and thereby moves the derailleur the same distance) with every click, no matter what gear you're in. Each click gives you a predictable 3mm of cable pull. Thanks to the 2-spring design and Exact Actuation, the Force rear derailleur is perhaps the most user-friendly derailleur we've ever seen.

Product Details

Color: Silver Black | Size: Medium Cage WiFli
  • Product Dimensions: 6 x 5 x 3 inches ; 3.5 ounces
  • Shipping Weight: 8.8 ounces (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B008JHQMF8
  • Item model number: 00.7518.015.000
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (6 customer reviews)
  • Amazon Best Sellers Rank: #136,714 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
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Customer Questions & Answers

Customer Reviews

4.5 out of 5 stars
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See all 6 customer reviews
A great product for climbing courses!
Jason Nadeau
In the hilly area where I live, and considering I'm quite out of shape, combining an 50-34 crank and an 11-32 cassette is a great combination!
David Nixon
Took the Apex off and weighed it: 213 grams. (give or take a gram or 2 of dirt) So not a huge weight savings, but all little bits help.
Rdxl9

Most Helpful Customer Reviews

3 of 3 people found the following review helpful By Rdxl9 on January 13, 2014
Color Name: Silver BlackSize Name: Medium Cage WiFli Verified Purchase
I upgraded my derailleur from the SRAM Apex to the SRAM Force this weekend. The Apex one worked fine, but I wanted something new for my bike, and I thought this would be a fairly inexpensive upgrade to my bike, and one that could potentially have a marginal beneficial performance improvement to boot. I was doubtful how much of a difference it would really make... I mean a derailleur is after all only a very simple mechanical device.

First impressions: Pretty ugly color scheme on this piece of equipment! My bike is all anodized black, and this is, I don't know, like a grey with a blueish green tint depending on how the light hits it. It's a weird color, and not my favorite. Just looks odd and out of place on my bike. Not even sure what color bike this would compliment, but a straight gray would have been better. Black would have been ideal. (The APEX one was all black)
Here are some links so you can see the color under user lighting conditions:
imgur dot com/QZCWDBO
imgur dot com/WhjP3o1
imgur dot com/0U3Hivo

I weighed it new out of the box and it weights 191 grams.
Took the Apex off and weighed it: 213 grams. (give or take a gram or 2 of dirt)
So not a huge weight savings, but all little bits help.

Went out for a 36 mile bike ride (first really nice weekend around here this year) and have to say I was impressed with the shifting right away. Click on the paddle and instant shift. Very crisp, fast and exact. Up or down it's just click and your there. Best of all, when climbing hills and shifting, even under fairly heavy chain load, shifting was still exact and crisp, and noise free. My riding buddy also noticed how much smoother my shifting was.
Read more ›
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4 of 4 people found the following review helpful By the menace on February 13, 2013
Color Name: Silver BlackSize Name: Medium Cage WiFli Verified Purchase
they say that you get what you pay for. quite true here. was using the rival wi fli rear derailleur, upgraded to the force model. sharper and crisper shifts and as an added bonus, lighter.
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2 of 2 people found the following review helpful By David Nixon on February 24, 2014
Color Name: Silver BlackSize Name: Medium Cage WiFli Verified Purchase
In the hilly area where I live, and considering I'm quite out of shape, combining an 50-34 crank and an 11-32 cassette is a great combination! The 50 front and 32 rear combination lets me climb small hills with out dropping to the small front ring. 34 front and 32 rear lets me spin up steep hills slowly.
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