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Your cart is empty.This listing is a brand new Chain Roller Tensioner Kit. It is necessary for all serious riders. It protects swing arm & helps guide chain correctly. It ensures proper chain tension and alignment. It prevents the chain derailment, excess wearing of the sprocket and prolongs chain's life. If you don't have the proper chain tension, the chain will get lose or break. Eventually, it will damage the side cover and the stator plate. Features: Heavy duty chain roller tensioner with upgraded spring, thicker wire and longer travel The bracket use 3.2mm thick metal, stronger built than other tensioners. The kit comes with an extra roller as spare parts. Seamless steel bushing brings smooth rotoring and longer life. 14mm inner diameter mounting bushing size, please see photos for detail measurements. Some models may use different parts. Please check pictures above for details and specifications before you buy. Length: 64mm Installation Hole Inner Diameter: 14mm Roller Inner Diameter: 12.2mm Roller Inner Width: 17.9mm Roller Material: Nylon Polyurethane Please look at the picture to make sure the measurements. Package Included: 1 x Chain Tensioner Kit with Spring and Extra Roller as Pictures Show.
Marylin Carr
Reviewed in the United States on July 21, 2022
If you look at the item pictures, the one that says “other sellers” ,the one that’s silver. That’s the one I got. The quality is horrible. Definitely not worth the money.
DWTNA
Reviewed in Canada on January 18, 2022
The so-called steel bushing seemed loose. And I easily could break it out, while testing if this is going to last. The description showed a fully-around welded one. It was not even spot welded. Also, the axle for the roller is not welded. Both ends seemed more like compression fit, riveted. Definitely not made to last!
Awesome Couple
Reviewed in the United States on June 24, 2021
In short; it doesnt fit. Too big: it pinches against the clutch, and the spring is too stiff. I had to bend the spring just to get it on and even so the arm itself is too big. Also, the roller is just cheap plastic, in comparison to the metal roller bearing on the stock unit. Do not get for the Colman CT200U.
Dennis Lapierre
Reviewed in Canada on October 28, 2021
A little light for my needs. I used it as a chain tensioner for a sawmill that used a bicycle chain to drive the sawblade. A unique use of the tensioner, admittedly. Time will tell how long it lasts.
Conor
Reviewed in the United States on October 25, 2021
Not the same as the item description. Nothing was welded, only pressed. The roller pin flexes and bends when the chain is tight. Makes a ton of noise. But, it works, and it was one day delivery so that was awesome. Keeps the chain from grabbing the case and keeps it tight so the chain doesn't pop off the sprocket.
Coran Pratt
Reviewed in the United States on February 7, 2020
Update, the rollers sucks. All 4 have split in 2. One of them didn’t last 8 trips around the block. One of them didn’t last 3 trips around the block. One lasted about 3 hours total and yesterday one have out after about an hour of ride time.Great piece for swaps and hassle free chain tension. Addition hardware make the use of the product better.If you have all the factory hardware and roller from your DB30 you can make it work. For a cleaner, safer lasting install addition hardware is needed.
Dylan
Reviewed in the United States on December 28, 2020
Hey i mean, ive ridden about 60 miles and its held up fine. The thing spins so fast you'd think it would burn up but this one does great on my coolster 125cc 3 speed quad
Matt
Reviewed in Canada on April 29, 2020
Thank you. It works with no problems.
kevin fodi
Reviewed in the United States on September 8, 2019
i used this on a vintage mini bike whose rear sprocket was welded to the hub incorrectly, thus having the chain tighten at one point but loose in another. i mounted the tensioner to the frame without utilizing the spring included. i adjusted the tensioner at the loosest part of the chain for proper tension, and tightened in that position. works perfect, chain no longer comes off sprocket. i did use several washers to shim tensioner to the desired location for my application.
Smokerofstars
Reviewed in the United States on August 18, 2019
Needed a chain tensioner on my old style Doodlebug that's running a 212 Predator and TAV. It works great. I didn't bother using the spring that came with it and just set it manually before torquing the hell out of the bolt that holds it on with an impact. No complaints and will be buying another for a different mini bike project I have.You will need to have a bracket that's welded to the frame to mount this on a mini bike.
shooter
Reviewed in the United States on March 22, 2019
Good value sturdy design/ build. 10$ u can't beat the price!I used mine on a couple minibikes.You are probably going to have to mod your own mount/ pivot.
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