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Chainring sortout
 

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Nick Payne
Joined: 10 Jan 2004
Posts: 2535
Location: Canberra, Australia

9/16/21 8:08 PM

Chainring sortout

I eventually (after many years) got sick of searching through multiple boxes every time I wanted a chainring of a particular size and BCD, so I put up a pegboard, emptied all the boxes onto the floor, and hung up the chainrings sorted by BCD and size. I was actually a bit shocked to find how many I had accumulated over the decades:

<img src="https://lh3.googleusercontent.com/V0QuLuSt39KObOJ7tgYJYz1oy2-Ajoz2UAsmnISjt2wxNv0-qI1w4bcGtfMubMb3ojs1qyXmPcZaKU1MeXKxzNS10Wc90awoCtXizv9PfkofXlBSZLzeOtdPiMZFAD6a3fcvQ_MSe3E=w1200">

Seeing them up there reminded me of a conversation with a farmer who collected tractors, and one of his sage pieces of advice was: "Never line them all up next to each other".

My wife, as an ex-librarian, was so thrilled at seeing order out of chaos that she made no mention at all of the sheer number of them.

p.s. For some reason, when an image is a link to a Google photos image, it doesn't actually display here unless you are logged into the msgboard.

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Sparky
Joined: 08 Dec 2003
Posts: 18203
Location: PDX

9/16/21 8:59 PM

Nice work. :)

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dan emery
Joined: 11 Jan 2004
Posts: 6563
Location: Maine

9/17/21 3:26 AM

Next up

Labels

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Andy M-S
Joined: 11 Jan 2004
Posts: 3287
Location: Hamden (greater New Haven) CT

9/17/21 5:18 AM

some very shiny TA rings!

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Nick Payne
Joined: 10 Jan 2004
Posts: 2535
Location: Canberra, Australia

9/17/21 4:11 PM


quote:
some very shiny TA rings!

Between my wife and myself we have five cranksets that use those chainrings - one genuine TA, one Shimano Deore touring crankset from the early 1980s, and three Sugino PX. A few years ago I thought that TA were going to cease manufacturing the rings for them, so I bought enough spares so see us through for a while...

The Deore cranks were intended for use with Dyna-Drive pedals (the ones with the 1" pedal thread and only a single inboard bearing), so I had to fit adapters to them to use normal 9/16" pedals:

<img src="https://lh3.googleusercontent.com/3Q8PrzGiQPK1LG_dFHWMFvSiomd011ZW3JNuJ6hG89nVgU5uZBMzAZux4F0lWbh7CUr52pcCkJ6806eJK9ofLpDxnIBusmiA8UdWidUMilsVTnJ_Fv912fi1kjRA4-K8zeiDtFlUfw=w1200">
<img src="https://lh3.googleusercontent.com/jK9b6rT8t_2a3-MH_Lcr2Z51YIRu0_q32OIX41CN6iAlmZzmhz8O_Ah02_E8t8da7ynDFP93e1DqR3SzH3Y_-GpIM6JptMu7ZyRXmwU3G20VC5KUOABP4SPdceMP1V4SbVkNu0gdvg=w1200">

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KerryIrons
Joined: 12 Jan 2004
Posts: 3126
Location: Midland, MI

9/18/21 7:53 AM

spares

My sum total of chain rings lying around is 2 worn our 53s and one worn out 50. I don't know why I don't throw them out. I never change my gearing. Different worlds, Nick and I.

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Sparky
Joined: 08 Dec 2003
Posts: 18203
Location: PDX

9/18/21 11:59 AM

My ring/spiders stash fits on 3 peg hooks, although maybe soon a 4th. The entire wall in the garage is pegboard, 7x18' pretty much. The wall has a lot parts on it...

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dan emery
Joined: 11 Jan 2004
Posts: 6563
Location: Maine

9/18/21 2:01 PM

Different worlds

Iíve got a lot of rings, but not nearly as organized as Nick or Sparky.

I always ride hills and Iím likely not as strong as Kerry so I need low gears, <1:1 for events like the Rockpile or D2R2.

I like TA, I have a TA triple on my Ď83 Fat Chance, I recall it was major PITA to take the rings off and put them on again. I think you needed to follow a certain sequence which I was unaware of.

I have about 7 spare rings that came with my Ď65 Cinelli Mod B alone. It came with 51/49 on a steel Stronglight cottered crank, with a pile of spare rings in different sizes. I guess they figured you change rings instead of the freewheel (14-24 5sp I think).

Then Iíve got my Suntour Microdrive 42/32/20 for the Rockpile, current 1x11 38, 42/30 for D2R2, etc.

Most of them are still on cranks thoughÖ:)

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Andy M-S
Joined: 11 Jan 2004
Posts: 3287
Location: Hamden (greater New Haven) CT

9/20/21 7:17 AM

TA

TA and TA-style cranks can be a major pain. There are a lot of parts involved.

You also almost always have to pull the cranks to change anything out.

That being said, the aesthetics are hard to beat. I've had a Sugino PX crank on my bike for seven or eight years, set up as an easy double (46/24, IIRC) and recently changed it to a single (I forget the size--42, IIRC) so I could go 1x9.

Lots of work, but worth it.

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Sparky
Joined: 08 Dec 2003
Posts: 18203
Location: PDX

9/20/21 10:56 AM

While we are on this subject:

I read things like 26/46, 30/46 etc Mirco compact? Like to hear what all you all find works in this realm.

When I tried 30/46 I found being in the 46 except for climbing I was riding cross chained a lot. nice to drop to the granny and go up anything.

The rings I got when installed made the chain line less, so I shimmed it out to normal. I am starting to think [went back to 34/50] the tighter chain line was by design to negate cross chaining expecting a lot of big ring use?

I like how a 28/40 or 28/42 behaves better in use for such gearing and choose the bike for the task having plenty of them. But 40t chainring has me coasting a lot descending, not really a terrible thing. [gravity and girth et al]

I was using a 30 or 32t cassette with the 30/46, and using 34t with the 34/50 chainset, which are all very close in lowest gear as not to notice a difference on a non loaded light bike to me.

I have lower gears on the Strong Allroad when bags are on and I go to crater lake for example.

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Nick Payne
Joined: 10 Jan 2004
Posts: 2535
Location: Canberra, Australia

9/20/21 9:31 PM

@Andy M-S: your TA double setup couldn't have been 46/24, as the smallest chainring size with the 80BCD TA chainrings is 26t. I'm also presently running one of the Sugino PX cranks as a 1x13 with the SunXCD 110BCD adapter spider and a narrow-wide 38t chainring, combined with the Campagnolo Ekar shifter/derailleur/10-44 cassette. Ratio Technology in the UK sell a 110BCD NW chainring that has narrow enough teeth to work with the Ekar chain: https://ratiotechnology.com/product/ratio-ring-5-bolt-110-bcd/ . They also have some other interesting products, such as replacement ratchets for SRAM 11-speed road shifters that allow them to be used with SRAM MTB RDs and 12-speed cassettes.

@Sparky: I have quite a number of bikes setup with either 42/29 on 94BCD cranks or 40/28 on TA and compatible cranks. I generally run these with 11-32 or 11-34 cassettes. That gearing works for me. 42x11 is very little different from the 52x13 that was the standard top gear when I started road racing back in the 1970s (44x11 would be the identical gear), and I see no need for anything larger. With the sort of riding I do these days, the 11 cog doesn't get much use.

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Andy M-S
Joined: 11 Jan 2004
Posts: 3287
Location: Hamden (greater New Haven) CT

9/23/21 4:54 AM

hmmmm

@Nick Payne: I likely still have the rings in the basement, so I'll take a look. I'm sure you're right--I just don't recall clearly.

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Andy M-S
Joined: 11 Jan 2004
Posts: 3287
Location: Hamden (greater New Haven) CT

10/4/21 4:44 AM

@Nick Payne

I finally remembered to check... 46/30. I have no idea where my brain went regarding the smaller ring being in the 20s...

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