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SRAM
Force 1 Rear Derailleur

SALE: $187.99ea.
MSRP:$234.99
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SRAM's Force CX1 Rear Derailleur is a dedicated cyclocross 1x rear derailleur.

To make the CX1 Rear Derailleur, SRAM borrowed many technologies from their excellent 1x MTB products to create a superior rear mech for cyclocross. Thanks to a roller bearing clutch and X-Sync™ pulleys, this derailleur essentially eliminates chain slack for a more secure chain that is crucially important to a 1x system. The X-Horizon™ design uses a "straight parallelogram" geometry makes for light shifts and also makes ghost shifting impossible, for accuracy and dependability even over rough terrain. If you're planning on running a 1x system this 'cross season, this is the rear derailleur you want moving your chain.

The Force CX1 Rear Derailleur is compatible with 10 or 11 speed systems. Medium cage max cog 36t. 261 gram claimed weight.

A newer version of this product is available.
SALE: $214.00
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Worked as smooth as silk from day 1 (after adjustment of course)
by chrisH
Cycling Enthusiast
Seattle, WA

Adjusted it using the videos then a second minor adjustment after the first ride and since then has worked as smooth as silk even shifting under heavy load.

Reviewed 8/28/2017
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Durable Derailleur
by DeeBiker
Competitive Racer
Portland, OR
1 of 1 customers found this review helpful.

This derailleur survived when all else failed at the 2014 Washington County Fairgrounds Cross Crusade race. There were 107 DNFs, most due to rear derailleur failures. Not only did the CX1 work throughout the race, it shifted brilliantly under load even when it was completely packed with mud. I used this derailleur with a 12-30 Shimano Ultegra Cassette, a Shimano 105 10-speed chain, and a Race Face Narrow Wide 40T chainring up front.

I purchased this CX1 rear derailleur to work in conjunction with my 10-speed SRAM Force shifter on a 1x10 system for my Asylum Meuse. Let me say that this is probably the coolest piece of bike tech I've purchased in two years. Not only is it super durable, it's snappy and responsive and when combined with a narrow wide chain ring, I've experienced absolutely NO chain dropping or chain slap on my stays. This is in large part thanks to the clutch system. I'm also very impressed with how aggressive the teeth on the pulleys are (they really hold onto the chain and make sure it keeps moving even when it's all gunked up).

If you have SRAM shifters and you're looking for a way to lighten your bike, upgrade your shifting, and switch to a 1x1011 system, this is the best thing you can get.

What's more, when and if I decide to upgrade to 11-speed, all I have to do is get a new right shifter.

Reviewed 10/29/2014
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Durable Derailleur
by DeeBiker
Competitive Racer
Portland, OR

This derailleur survived when all else failed at the 2014 Washington County Fairgrounds Cross Crusade race. There were 107 DNFs, most due to rear derailleur failures. Not only did the CX1 work throughout the race, it shifted brilliantly under load even when it was completely packed with mud. I used this derailleur with a 12-30 Shimano Ultegra Cassette, a Shimano 105 10-speed chain, and a Race Face Narrow Wide 40T chainring up front.

I purchased this CX1 rear derailleur to work in conjunction with my 10-speed SRAM Force shifter on a 1x10 system for my Asylum Meuse. Let me say that this is probably the coolest piece of bike tech I've purchased in two years. Not only is it super durable, it's snappy and responsive and when combined with a narrow wide chain ring, I've experienced absolutely NO chain dropping or chain slap on my stays. This is in large part thanks to the clutch system. I'm also very impressed with how aggressive the teeth on the pulleys are (they really hold onto the chain and make sure it keeps moving even when it's all gunked up).

If you have SRAM shifters and you're looking for a way to lighten your bike, upgrade your shifting, and switch to a 1x1011 system, this is the best thing you can get.

What's more, when and if I decide to upgrade to 11-speed, all I have to do is get a new right shifter.

Reviewed 10/29/2014
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Great
by Anonymous
Competitive Racer
1 of 1 customers found this review helpful.

CX1 is a perfect system. No dropped chain, foolproof setup. 40T front, 11-32 back gives me everything I need to CX racing and some trail rides.

Reviewed 9/25/2014
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