Every cog size Shimano 10 speed cog collection

[Bill Lindsay]

I bought six Shimano HG500 10 speed cassettes.  Three of the 12-28 size and three of the 11-32 size.  

I ground off the heads of the rivets holding the cogs together, and pulled the cogs apart, and now I have the sweet beginnings of a fully stocked cog board.  The two cassettes yield:

11T lockring

12T lockring

11T first position

12T first position

12T second position

13T second position

2x 14T flat

15T flat

16T flat

17T flat

18T flat

19T flat

20T flat

21T flat

22T flat

23T flat

2x 25T flat

28T flat

28T beveled 

32T beveled

Lots of 10 speed spacers

The 11-32 cogs have some weird discoloration, like maybe they get washed after assembly and the moisture got trapped.  Whatever. 

If anybody wants to buy a very hard to find 20T or 22T Shimano 10 speed cog, I would sell one of each, two cogs for $25 shipped.  I'll even throw in two spacers.

Bill Lindsay

El Cerrito, CA

[Garth]

 

Bill, did you only have to grind off the top of the rivet and they pulled apart ?  No punching out or drilling the rod ? For that matter, how did you secure the cassettes for the grinding off the heads ?  

Inquiring minds wish to know !

[Bill Lindsay]

I held the cassette in my left hand.  I ground off the flat head of each rivet with my dremel.  The force and action required was similar to what I would have done trying to erase a pencil mark.  It took roughly 30 seconds per rivet.  

Once the heads were ground off, I set the cassette over a small gap.  In my case it was a small gap between my vise jaws.  With a drift punch and a rubber mallet I tapped the rivet once, and it stuck out the other side.  I grabbed the stuck out other head with pliers and pulled it out.  The force required varied between zero and maybe the amount of pull force it takes to pull a rusty brake cable out of its non-lined brake cable housing.  

The entire time it took to go from a sealed shipping box to the cog arrangement in the photo was somewhere between 4 and 5 minutes.  

Bill Lindsay

El Cerrito, CA

[Garth]

Thanks a bunch Bill, that's very helpful !

[Bill Lindsay]

Here's my first proof-of-existence of a cassette that does not exist as an off the shelf product:  It's a 100% Shimano HG500, 10 speed, 12-21 straight block.  

On my Rivendell Roadeo, with a 46/30 crankset, that will give me the following gears:

	46	30
12	103.5	67.5
13	95.6	62.3
14	88.7	57.9
15	82.8	54
16	77.6	50.6
17	73.1	47.7
18	69	45
19	65.4	42.6
20	62.1	40.5
21	59.2	38.6

The way I have the chainline biased for minimum Q-factor, that effectively gives me a 1x10 in the big ring that will cover 60 - 100 gear inches.  I'll avoid the smallest three cogs with the 30T chainring.  The largest 7 cogs spread evenly over the 40 - 55 inch range.  

I haven't confirmed how well this indexes in the stand, but I'll check that out shortly.  The on-the-road question I will ask myself will be whether I find the steps between gears annoyingly TOO SMALL.

It definitely looks cool

Bill Lindsay

El Cerrito, CA

[Patrick Moore]

10-speed straight block! It's beautiful. My own ideal dirt road cogsets are very similar, only starting with a 13 and swapping the 21 for a 22 and adding a 25 or 26 at the back.

The only closer-ratio cogset is the secret "Polish Team17 X 17" cogset, with apologies to Poles everywhere.

My own experience, not extensive, with index-shifting home-made cogsets is that they work pretty well post-7-speed. You might have to very slightly overshift on certain cogs, but not to the point where it's annoying -- certainly no worse than OEM Shimano XT stock 7-speed indexing.

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Patrick Moore

Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum

[Bill Lindsay]

Patrick Moore said: "My own ideal dirt road cogsets are very similar, only starting with a 13 and swapping the 21 for a 22 and adding a 25 or 26 at the back."

What chainrings do you use with this ideal 10-speed 13-25/6?

Bill Lindsay

El Cerrito, CA

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[Patrick Moore]

42/30, wheels 29.6" tall.

This is the ideal cassette for these wheels and rings; it's currently a 14-25 9-speed while I wait for my cog order.

29.6" BIG ONES
	42	28
13	96
14	89
15	83
16	78
17	73	49
18	69	46
19	65	44
20	62	41
22	57	38
25	50	33

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[Patrick Moore]

Forgot to add that yes, even for me, something bigger than 90 gi is occasionally useful. I spun out (slow rpm; 175 mm crank arms) the 89" the other day on a very slight downhill.

[Jim Bronson]

What I would like to make, were I to aim to make another custom cassette, is a 13-32 10 speed, with 46/26 chainrings.

      46   26

13 92.0 52.0

14 85.4 48.3

15 79.7 45.1

16 74.8 42.3

17 70.4 39.8

18 66.4 37.6

20 59.8 33.8

23 52.0 29.4

27 44.3 25.0

32 37.4 21.1

I don't need gear inches over 100.  Inner ring only used on very steep hills.

-Jim

Leander, TX

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[John Hawrylak]

Bill

great details and good work.

I think you will find the gear change below 17T as 'annoyingly small".  

John Hawrylak

Woodstown NJ

[Bill Lindsay]

The 12-21 indexes great in the stand, so I'll take it out on the hilly road standard The Three Bears.  I'm expecting that it will be a grind to push the 30-21 up Papa Bear, and back up Wildcat on the way back home.  

Bill Lindsay

El Cerrito, CA

[John Hawrylak]

Bill

How did the cassette work on the test rides?   Did you encounter 'annoyingly small" shifts?

John Hawrylak

Woodstown NJ

[Bill Lindsay]

John

My last few rides have been on other bikes, but I can assure you I am pre-emtively annoyed at the one-tooth jumps.  

Bill Lindsay

El Cerrito, CA