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Shimano Alfine Chain Tensioners

Shimano Alfine Chain Tensioners

by Shimano
4.0 out of 5 stars  See all reviews (5 customer reviews)

List Price: $33.50
Price: $19.98 - $30.91
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Product Description

Shimano Alfine CT-S500 Chain Tensioner. CT-S500 Alfine Chain Tensioner 20 tooth max rear sprocket 16 tooth chainwrap capacity 41.8mm chainline Uses

Product Details

  • Shipping Information: View shipping rates and policies
  • ASIN: B003UW64N2
  • Average Customer Review: 4.0 out of 5 stars  See all reviews (5 customer reviews)
  • Amazon Best Sellers Rank: #206,729 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
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Customer Reviews

5 Reviews
5 star:
 (2)
4 star:
 (1)
3 star:
 (2)
2 star:    (0)
1 star:    (0)
 
 
 
 
 
Average Customer Review
4.0 out of 5 stars (5 customer reviews)
 
 
 
 
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Most Helpful Customer Reviews

2 of 2 people found the following review helpful:
5.0 out of 5 stars well made item, October 3, 2009
Amazon Verified Purchase(What's this?)
This chain tensioner has limited application, but is just the right thing when you need it. Application to multi-speed hubs with single or multiple front rings is good. It can also be used in recumbent drivelines to take up extra chain and as an idler. Spring is really stiff compared to derailleurs. Attachment may need to be modified. Tap M10X1.0 to mount if not using stock hanger.
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1 of 1 people found the following review helpful:
4.0 out of 5 stars Great value, October 6, 2009
By 
Dale A. Meyn "Dale" (Fredericksburg VA USA) - See all my reviews
(REAL NAME)   
Amazon Verified Purchase(What's this?)
This tensioner works very well, the only kind that allows retention of the front (crank) derailleur together with a single speed or multispeed hub. And at a great price.
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3.0 out of 5 stars Nice Tensioner - Extremely Poor Sales LIterature, July 19, 2011
By 
ccnyc (New York, NY USA) - See all my reviews
Amazon Verified Purchase(What's this?)
This review is from: Shimano Alfine Chain Tensioners (Misc.)
WARNING - This tensioner is for use ONLY with Shimano Alfine hubs ONLY running narrow chainline

First of all, this is a very fine product. But the sales literature is non-existent. Do NOT buy this for your Alfine hub if you have flipped your cog to get a 47~ mm chainline. It will not work no matter how many spacers you put in. The 47~ mm chainline is the "normal" chainline for MTB (68/73 mm BB).

Like I said, its a fine product and if you have not flipped the cog then it will work nicely for you. But if you have a MTB with the standard 50 mm chainline, do NOT buy this tensioner.
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