Are BMX cogs compatible with HG?
12-04-17 | 01:43 PM
#1
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Are BMX cogs compatible with HG?
I'm setting up an old mtb as a winter single speed. Looking at cogs on Ebay I see some inexpensive options listed as BMX cogs. Will they fit on a Hyperglide cassette body? Hard to tell from the picture.
12-04-17 | 02:21 PM
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Shimano 9 spline cogs are all the same*, hyperglide have 1 thick and 1 thin spline.. measure?
* Sturmey Archer S3X and the Brompton 3 by 2 6 speed hub also made by S-A use the 9 spline.. (& you can get Gates Belt Cogs)
why not start out with a freewheel hub wheel , you can build it dishless and have a stronger wheel ..
symmetrical bracing spoke angles are a winner.
.....
* Sturmey Archer S3X and the Brompton 3 by 2 6 speed hub also made by S-A use the 9 spline.. (& you can get Gates Belt Cogs)
why not start out with a freewheel hub wheel , you can build it dishless and have a stronger wheel ..
symmetrical bracing spoke angles are a winner.
.....
12-04-17 | 03:19 PM
#3
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Shimano 9 spline cogs are all the same*, hyperglide have 1 thick and 1 thin spline.. measure?
* Sturmey Archer S3X and the Brompton 3 by 2 6 speed hub also made by S-A use the 9 spline.. (& you can get Gates Belt Cogs)
why not start out with a freewheel hub wheel , you can build it dishless and have a stronger wheel ..
symmetrical bracing spoke angles are a winner.
.....
* Sturmey Archer S3X and the Brompton 3 by 2 6 speed hub also made by S-A use the 9 spline.. (& you can get Gates Belt Cogs)
why not start out with a freewheel hub wheel , you can build it dishless and have a stronger wheel ..
symmetrical bracing spoke angles are a winner.
.....
12-04-17 | 03:46 PM
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12-04-17 | 04:57 PM
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Just thought to consult the Sheldon page on SS and got my answer:
You can use one of the old sprockets from your taken-apart cassette, but it you are less likely to have accidental derailment if you use sprockets made for single-gear us, with longer teeth. BMX cassette sprockets are best. These sprockets are quite inexpensive, and are available in a range of sizes.
12-04-17 | 06:26 PM
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What brand? I can tell you Shimano DX or DXR BMX cogs work and are pretty cheap. They will completely destroy anything but a steel freehub body though.
I have a feeling if they are really cheap they are coaster brake cogs and those wouldn't work. Post a link to one of the ebay cogs.
I have a feeling if they are really cheap they are coaster brake cogs and those wouldn't work. Post a link to one of the ebay cogs.
12-05-17 | 09:57 AM
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What brand? I can tell you Shimano DX or DXR BMX cogs work and are pretty cheap. They will completely destroy anything but a steel freehub body though.
I have a feeling if they are really cheap they are coaster brake cogs and those wouldn't work. Post a link to one of the ebay cogs.
I have a feeling if they are really cheap they are coaster brake cogs and those wouldn't work. Post a link to one of the ebay cogs.
I discovered I have a 16t in the stash so I am going to try that with my 42 ring, so about 67 inches. Normally I'd say that's low but for this bike I might actually want something lower still. Time will tell.
12-05-17 | 01:00 PM
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you might find that a 16/42 is a bit tall for a 26"wheeled bike... that's a popular BMX gearing, and the smaller wheels on them lends a different final ratio...
if you've got them, give it a try, but i'm thinking it might be too tall... your use and terrain will be the deciding factor.
if you've got them, give it a try, but i'm thinking it might be too tall... your use and terrain will be the deciding factor.
