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Customer
Reviewed in the United States on May 8, 2024
RK makes a great sealed chain. It saves a little time that it can be ordered in a specific number of links and doesn’t need to be vut.
JLG1
Reviewed in the United States on December 5, 2024
I've used these chains for several years. They are the best I've used. I'm using this chain with steel rear sprockets. I have to adjust the tension much less than other chains I've used.
Customer
Reviewed in the United States on December 8, 2023
Awesome. Fits 2003 cr250r without having to shim the counter shaft sprocket. As thin as a non o-ring chain
austin norton
Reviewed in the United States on March 6, 2022
These chains are awesome. They last a long time,are narrow for a o-ring chain, and spin freely when lubed. It's all I use now
my2cents
Reviewed in the United States on December 13, 2019
pros: seems very durable, only had to re-tension 2x- great o- type option for bikes that require narrow chains-gold chain is a cool lookcons: chain is pricey as is the master link spare
Justin Jokela
Reviewed in the United States on November 19, 2019
The thinnest sealed chain I have seen and good quality. I will definitely will be buying another in the future
Asking for a friend...
Reviewed in the United States on July 27, 2016
After extensive research on all the chains currently available (2015) from DID, EK, RK, Tsubaki, Regina, Renthal and ProTaper, I have this chain on 3 bikes now. It is the most appropriate chain I can find for dirt bike use, from 125cc 2 stokes up to 450cc 4 stroke motocross bikes. It's narrower and lighter than any other high quality 520 sealed chain I know of and stronger at the same time. Check the specs! Rolls very freely for a sealed chain, even when cold. Rolls even better when warmed up like all sealed chains. I used to be a DID only guy. Their prices have become prohibitive for their best chains. I tried a DID VX2 and was very unsatisfied with the gold coating. It rusted just like a bare steel chain. I've switched to this "gold" plated RK MXU now and they have been great. I've used it on KDX and KTM 200's and 250's, all 2 strokes. I haven't had any issues with stretch or rust. I now lube my chains with cheap 90W gear lube to prevent rust on the outside after washing the bike just to ensure they don't rust, but for comparison, these chains remind me of the DID ERT2 unsealed MX chain for corrosion resistance but incorporate sealing for the same price. The good DID sealed chains like ERV3 are now about $170! Yikes!
Theodore Abdon
Reviewed in the United States on February 28, 2013
Great chain. Low wear, low drag. good looks. Light weight and narrow porfile for an O-ring chain. Fits like a standard chain.
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