Bicycle Mechanics - IG/HG cassette

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.



PDA

View Full Version : IG/HG cassette

bikex10
12-31-06, 08:14 AM
I currently have a road build that I have put a 8spd 11X28 xt cassette on to get a little better climbing without going to a compact. I purchased the cassette used.
My question is, the lock ring says HG, I thought that 8spd's were IG? Could it have the wrong lock ring on it?
What is the difference between the HG and IG? Can I run an IG chain on a HG cassette?
Thanks

Sheldon Brown
12-31-06, 09:31 AM
I currently have a road build that I have put a 8spd 11X28 xt cassette on to get a little better climbing without going to a compact. I purchased the cassette used.
My question is, the lock ring says HG, I thought that 8spd's were IG? Could it have the wrong lock ring on it?
What is the difference between the HG and IG? Can I run an IG chain on a HG cassette?
Thanks

See: http://sheldonbrown.com/k7

Basically this is a non-issue in practice, especially if you use Sram chains, as I recommend.

Sheldon "It's About Marketing" Brown
bikex10
12-31-06, 11:28 AM
Basically this is a non-issue in practice, especially if you use Sram chains, as I recommend


Thanks for the response Sheldon,I am always humbled by your knowledge.

HillRider
12-31-06, 12:50 PM
HG was sold as a road component and IG as MTB. The differences are minor and not worth worrying about. Shimano's "official" line was that an IG chain could be used with either HG or IG cassettes but HG chains should only be used with HG cassettes. Did it matter? Probably not.