Sun Race Cassette
07-15-20, 12:14 PM
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Sun Race Cassette
Good afternoon. I am trying to revitalize a 2009 Trek 820 WSD that has suffered from a lack of love. From the best I can tell, it appears to have a Suntour cassette. How is this removed? I cannot see any notches for a removal tool. I need to clean everything up and want to grease the rear bearings.
On another note, what would be a replacement cassette for this? It is the 13x30 7 speed and it has one tooth missing. Not sure I will replace it but want to see what my options are. Thanks.
Rex
On another note, what would be a replacement cassette for this? It is the 13x30 7 speed and it has one tooth missing. Not sure I will replace it but want to see what my options are. Thanks.
Rex
07-15-20, 04:43 PM
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A seven speed in 2009 is very likely a free wheel, not a free hub and cassette. (There are exceptions). It looks like Sunrace does not make that model anymore, but free wheels are pretty cheap and just about any will do for this bike. Replace the chain too while you are at it. If you are lucky, the chain rings are OK.
https://www.parktool.com/blog/repair...d-installation
https://www.parktool.com/blog/repair...d-installation
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Last edited by Darth Lefty; 07-15-20 at 04:55 PM.
07-15-20, 08:20 PM
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According to Trek specs it is a 13-34 Sunrace freewheel, but Sunrace “used” to make a 13-30 7 speed freewheel. The 13-30 was a very nice range in a not so nice package as Sunrace freewheels don’t hold up very well.
You can use a standard Shimano freewheel tool, Park Tool FR1.3.
Any Shimano compatible, you can use a Sunrace, 7 speed freewheel will work, but you will have to choose between a 28t and 34t max cog.
John
You can use a standard Shimano freewheel tool, Park Tool FR1.3.
Any Shimano compatible, you can use a Sunrace, 7 speed freewheel will work, but you will have to choose between a 28t and 34t max cog.
John
Last edited by 70sSanO; 07-15-20 at 08:27 PM.
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07-16-20, 11:34 AM
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It might be a good idea to look at each cog to get the tooth count, you might have to count the number of teeth. This at you can find one close, or get one that works better based on how you ride. Or you can get one with a larger or smaller range to fit your riding style.
You can use Shimano, SRAM, or KMC 7/8 speed chains. I use KMC “X” series because they are cheap and seem to hold up.
John
You can use Shimano, SRAM, or KMC 7/8 speed chains. I use KMC “X” series because they are cheap and seem to hold up.
John
