what are the cassette gear sizes for the CS-HG50 7-speed 13-34T? (http://www.amazon.com/Shimano-CS-HG5...
185979
13 - 15 - 17 - 20 - 24 - 29 - 34 Teeth. Personally, I think this is too wide a range and went with 14 - 32T which has 14 - 16 - 18 - 21 - 24 - 28 - 32 and does not have quite as big a jump between the gears.
9440
I had an ultegra 11-28 and replaced it with a 12-30 from Amazon to get a slightly lower climbing gear here in the mountains. The chain fit; only some minimal rear derailleur adjustments were needed. I have been riding that cassette for about 1000 miles now with no problems. Shifting is fine. LBS did the installation and adjustment for $6.
1512949
You could if you're using it with an 8 speed shifter but I wouldn't advise it. In other words, the answer has to be no. The 7 and 8 speed cassettes have the same width, end to end, in order to fit the frame spacing. So, by definition, the spacing of the individual gears has to different and must be matched to their respective shifters. Does that make sense?
551995
I used a 7 speed cassette on mine. I had to adjust the spacing on the axle. I took the old axle spacers from my old rim and transferred them over.
1182618
I don't know. I use mine on a spin bike. I just know shimano makes great gear.
2153532
You can use a Dura Ace chain without issue. A KMC X10Sl chain is another less expensive option / upgrade. It just needs to be a 10 speed chain. You don't need to buy another 12-30 cassette if you want to get something else. For example, an 11-25 would work just fine but you may need to shorten the chain. Park has a chain length calculator here http://www.parktool.com/blog/repair-help/chain-length-sizing that works really well and takes the guess work out of the determination. As far as adjusting the derailleur is concerned, most likely nothing more than a slight barrel adjustment is all that will be needed. Have fun.
2211678
Matt, the pitch (length from pin to pin) of all derailleur chains is the same. You want to be sure the width is correct. This KMC chain is specified for 7 and 8 speed clusters and will work with the 8-speed cluster on your Trek.
1308254
The problem isn't so much the seven speed cassette it's your rear drop out width. When road bikes went to 8 speeds the width was increased and is the standard today. An older seven speed frame has to be adjusted as in bent open to accept the newer wheel width.
397523
Freewheels and cassettes are two different and non-compatible gear clusters for the rear hub of derailer bicycles. If you are buying a new gear cluster and are presently using a 7 speed cassette, best to buy a direct replacement cassette gear cluster. If you bought a cassette and found out your hub was older and used freewheels then those are also available. Go to the Sheldon Brown website for a more complete description of both gear systems.
1391590
XTR & XT 7 speed generation would be from the early 90's - I highly doubt you will find that unless it comes off an old bike. Shimano does not even do 9 speed XT any more, only 10 speed now.
1809036
This will work, but you need to check on the shimano web site to see if your rear deraileur will work with the 28 tooth cog. Mine made noise because the idler gears were making contact with the 28t cog. I ended up buying a new mid length cage rear deraileur. They are pretty cheap online.
2080072
you can find answers to compatibility issues at the shimano website. you will have to do some searching because there's a lot of data and it will take a moment but you can find it there. i'm not that familiar with all shimano components to give a reliable response.
2246001
7-8 speed refers to the rear gears on the cassette. That's what really matters here. If the back has 7 or 8 gears, it will work. They come up with 18/21/24 by multiplying the number of front gears (usually 3) by the number of back gears. 3 x 7 = 21 or 3 x 8 = 24. Frankly, I don't know how they come up with 18, because that would be a 6 speed rear.
373350
You need to find out the treading type for your bottom bracket for your 2005 XCL access frame, threading type and length of the original Bottom bracket. Research the original spechs from the manufacturer, owners manuals and repair manuals are good sources and then come back with a specific question. The Shimano UN55 comes in different lengths but I think they are all 48mm English thread but I could be wrong on that too, do your homework !
1220549
So the distance between a 5, 6, and 7 speed freewheel/cassette is different. The less cogs, the more distance. Most likely this will not work well with a 5 speed indexed freewheel. There are 5 speed shift mechanisms out there, just search up for them.
521454
Hi. It should. This is for the 6-7-8 speed HG50 7.3 mm chain. I had bought this for 8 speed applications but Shimano gears and spacing for this group is almost identical or the same so the same chain is used for all. I have found the specs given by KMC quick links to be accurate for both Shimano and Campagnolo BUT read carefully what you are actually getting before buying.
271949
Yes. I am currently using a 7 speed cassette on this hub. However you will need a spacer as the width of the 7 speed cassette is not the same as the 8 speed cassette.