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  • Fire Eye The Spur Singlespeed Chain Tensioner
  • Fire Eye The Spur Singlespeed Chain Tensioner
From $39.49 - $42.00
  • RRP$69.99 - $70.49
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Singlespeed vertical chain tensioner.

• Material: aluminium 6061-T6 and stainless steel
• Surface finish: CNC machined, brushed and anodized
• Logo: lasered
  • Colour: Silver, Purple, Apple Green
Rated 2.3 out of 5 by 10 reviewers.
Rated 3 out of 5 by Probably the best lookin chain tensioner ever... Thumbs up regarding the design. It looks very nice when aplied to the dropout, the problem is the strength. I installed this Fire Eye because the tensioner already on the bike was broken. It was also a Fire Eye Spur Singlespeed tensioner. Take it up a notch when it comes to choice of material Fire Eye!!! 04 February 2014
Rated 4 out of 5 by Very nice piece of equipment, but you will probably need to adjust it. This product is of very fine quality, but yeah it has a problem with the chain skipping, because of the too weak spring. I had the same problem at first, but i found this small umbraco skrew on the underside of it, and you can man manually tigthen it. I have used it on my bike for a couple of years after that, and never had a problem again. 03 February 2014
Rated 2 out of 5 by Good quality and looks good, but the function for what it is designed for is limited This tensioner does not tension the chain enough for the power transfer needed for XC racing. It would be ok for someone just doing light recreational riding. 03 November 2013
Rated 4 out of 5 by Pretty good I don't know why this tensioner have only 1* and the others people don't like it... I bought this thing for my bike, a normal bike (a Viper Expert from 2011-2) but transformed in SS bike (with a SS kit from Fire Eye too). Fixed at the place of the rear mech, the tensioner push down the chain by a spring (like a rear mech). And it's possible to adjust the small whell to have the perfect line for the chain, so it's very usefull ! I use it in my city and sometimes in forest, never derailed in 2 months ! 03 February 2013
Rated 5 out of 5 by Very good! I own this tensioner now for 3 years and it has done plenty of commuting kms. It works very good if: 1 - you have correctly shortened your chain 2 - you must aline the sprocket with the chainring and the freewheel on the tensioner, otherwise the chain will fall - weird huh?! :D 3 - tight everything like a man and its a ride and forget. Simple cheap and effective if you know how to set it up. 100% recommended. 09 January 2013
Rated 1 out of 5 by DO NOT BUY THIS ITEM Terrible desingn - item is completely useless. Got the ano blue for a jump bike build and broke three chains trying to get SS drivetrain to keep from skipping. Turns out it was the tensioner. Sending back to CRC for a refund. CRC needs to drop this item immediately. 17 May 2012
Rated 1 out of 5 by Terrible! Agree with all the other reviews... Its designed to push down which is just wrong. even if this was the right way the spring is too weak to be effective, I (eventually) managed to modify the evil thing to make it push upwards :-) but still needed to zip tie it to the chainstay to stand any chance of the chain staying on :-( Just terrible, would have been easier to make my own than try to get this to do its job. 06 November 2011
Rated 1 out of 5 by Very dissapointing What a piece of junk. it may look cool but it pushes the chain away from the sprocket instead so you loose wrap. Chain skips like crazy. It just does not work. Pity one cannot tell from the picture how it actually looks installed. If I knew it pushed the chain away from the sprocket I never would have bought it pretty disappointing for $50 item. 01 November 2011
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Will this tensioner flex on a spring if used with a suspension frame? Looking to singlespeed my 100mm Enduro SX frame/bike 32/16.

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This singlespeed tensioner is spring loaded so will offer some flex in line with your full suspension frame. Chain tensioners like this one which were designed for converting geared bikes with vertical dropouts to single speed setups were designed primarily for hardtails, and won't cope happily with more than 3-4mm of movement / chain growth. Yess produce a full suspension specific tensioner which would likely be a better option (http://labs.yesspro.com/products/et...)
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