Rated 2 out of 5 by Anonymous Did not last any longer than an HG40 chain, disappointed.
Replaced the HG40 version of this chain on my 7 speed MTB, thinking the HG70 would get more mileage before changing, but I was wrong. Chain stretch reached 0.75% after only 750 miles, changed it after 1000 miles, when the 1% stretch was almost reached. I expected to get at least 3k miles, so disappointed. Switching to KMC to see how they compare. I keep the chain and lubricate each week, as I use the bike daily.
26 January 2013
Rated 5 out of 5 by Anonymous Dependable chain if fitted with a degree of care.
I've used about half a dozen of these chains, getting about 5000 - 6000 km out of each, but possibly replacing too early ( I use a chain wear indicating tool. Maybe direct chain length measurement would extend the indicated life. ) But I know I'm keeping my chainwheels and sprockets in good condition by regular chain replacement. I clean ( on-bike cleaning tool ) and lube chain ( Finish Line Dry ) about every 500 km and ride in weather that happems to be fine most of the time. I feel very confident when putting power through this chain ( as in e.g. hammering out of the saddle ) but would probably say that you need to be a careful type of mechanic when fitting this chain as it relies on Shimano's one-time only use press-through pin ( special supplied pin only to be used - best to get a spare or two for possible unexpected chain removal times ). Make sure after pressing in the pin ( chain tool needed ), that both ends of the pin protrudes equally through the chain side plates. Also free up the associated link if it goes tight. As always, carefully follow the included Shimano instructions.
01 November 2012
Rated 5 out of 5 by Anonymous best bang for the buck
I've used this chain for years with no problems at all. I only use Shimano chains and this is my favorite model for all of my 7 and 8 speed bikes. I never, ever use the pin that is already attached to the chain. This pin does not have the guide to keep both sides of the chain even, as the pin pushes all the way through. Once the pin is all the way through, the guide portion of the pin will just snap off with pliers. This is a wonderful design and the extra pin with guide is included with all of Shimano's HG and IG chains. When I trim the chain to size, I remove the end with the pin already in it.
I've been using HG chains ever since they were introduced and I've never had a problem with any of them. Actually, all of Shimano's HG chains work well, but I prefer the HG70 because it has the heat treatment which makes it a little stronger. I don't race, so I probably don't put that much stress on the chain anyway -- but I have the piece of mind that it should last longer.
24 September 2012
Rated 3 out of 5 by Anonymous Careful! SRAM Powerlinks are not compatible
This is a decent chain, but be aware that SRAM Powerlinks (both 7sp and 8sp versions) won't fit. The chain is a little bit wider than its SRAM equivalent. I eventually resorted to a Wipperman 8sp Connex connector instead, and that just about fits, although it's still a bit stiff.
Bottom line: if you get this chain use Shimano's "ready to go" pin that's already on one end of the chain instead of a third party connector.
20 September 2011
Rated 2 out of 5 by Anonymous Slipped alot
Slippy and became very gritty quickly. Buy one for a touch more money to be satisfied.
08 October 2010
Rated 2 out of 5 by Anonymous this chain seems ok for riding but really if u want a strong chain go buy a trials specific chain or setup your bike to be able to fit a bmx chain
04 April 2004
Rated 5 out of 5 by Anonymous This chain was really strong and it was an excellant buy as this is only my secnd chain on my bike and it is the best I have had but it could have been cheaper.
22 May 2003