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My FSIR Spin 5

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My FSIR Spin 5

Old 01-20-24, 12:07 AM
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Change log

  • Reinstalled Schwalbe Marathon Supreme 42-406 tires
Wanna squeeze some last milage out of this discontinued classic touring tire, veterans and flawless performers from my tour in Taiwan, first tour of South Korea and a couple of tours of Bali.
  • Reinstalled Ergon GP3 grips
Ditto.
  • Reinstalled WTB Pure saddle
Cuz Black is the new White


Front, 35psi


Rear, 45psi




.
.

Tengkulak


Sukawati


Payangan

Last edited by Ron Damon; 02-17-24 at 07:15 PM.
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Old 02-17-24, 05:19 AM
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The Flag, Sukarno and Pig

Last edited by Ron Damon; 02-17-24 at 08:02 PM.
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Old 02-17-24, 07:14 PM
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Lowest RD position


​​​​​~4.5cm with 42-406 tire

Last edited by Ron Damon; 03-16-24 at 05:02 PM.
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Old 02-18-24, 04:22 AM
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This 10s Shimano Deore derailleur is also mounted on several Tern bikes with ETRTO406 wheels.
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Old 02-18-24, 05:28 AM
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Originally Posted by Ron Damon

~4.5cm with 42-406 tire
Please pardon my ignorance on newer systems; There appears to be an additional pivot point just aft of the rear derailleur mount (versus older traditional RDs); Is that a "clutch" that I've heard of on newer RDs, especially for large 1X cassettes?

Also, I sure don't grasp why so many 1X cassettes, are all silver color plating, but the largest cog is black. Is this like semi-auto pistols with a black slide over a chromed frame? I don't see the aesthetic appeal, and I can't think of a functional one.

Last edited by Duragrouch; 02-18-24 at 05:32 AM.
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Old 02-18-24, 05:45 AM
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Originally Posted by Duragrouch
Please pardon my ignorance on newer systems; There appears to be an additional pivot point just aft of the rear derailleur mount (versus older traditional RDs); Is that a "clutch" that I've heard of on newer RDs, especially for large 1X cassettes?

Also, I sure don't grasp why so many 1X cassettes, are all silver color plating, but the largest cog is black. Is this like semi-auto pistols with a black slide over a chromed frame? I don't see the aesthetic appeal, and I can't think of a functional one.
The pivot aft of the RD mount is not the clutch, but rather the pivot around which the B screw rotates the RD to adjust the height of the top/guide pulley.

The clutch, here in the off position, is indicated by the red arrow.



On some cogsets, like this Shimano CS-HG500 part, the inner-most, dark grey cogs are made of aluminum rather than steel to reduce weight. This part weighs about 430g while the all-steel CS-M4100 part weighs north of 500g.
​​​​​

11-42T, one alloy cog


11-46T, two alloy cogs

Last edited by Ron Damon; 02-27-24 at 05:41 PM.
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Old 02-18-24, 07:01 AM
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(above) Excellent explanations, thank you!

The clutch location, makes sense from what I've read. I had thought it somehow was a different geometry or pulled the derailleur back when needed to help on 1Xs, but that's the function of the B-screw.

Aluminum low cog, makes complete sense. More difficult to plate I think, although nickel or chrome plating would be of more benefit in wear than on steel, though not as critical for corrosion as with steel, if using a proper aluminum alloy. It may be hard-anodized, aluminum oxide is hard.
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Old 02-18-24, 07:32 AM
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Originally Posted by Duragrouch
(above) Aluminum low cog, makes complete sense. More difficult to plate I think, although nickel or chrome plating would be of more benefit in wear than on steel, though not as critical for corrosion as with steel, if using a proper aluminum alloy. It may be hard-anodized, aluminum oxide is hard.
Seems counterintuitive to me. Alloy for larger cogs and steel for small is more intuitive.
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Old 02-18-24, 11:58 PM
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Originally Posted by Schwinnsta
Seems counterintuitive to me. Alloy for larger cogs and steel for small is more intuitive.
Yes, that's what I mean. By "low" (gear) cog, I meant the largest diameter cog. Big/low, small/high; Always a slight communication challenge when talking rear cogs.
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Old 02-27-24, 04:48 PM
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Spoke broke


Broke spoke on non drive side at 12 o'clock

If you wish to theorize, hypothesize or otherwise fantasize about the cause of the spoke breakage, there's a thread for that already, here.

Last edited by Ron Damon; 02-28-24 at 07:09 AM.
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Old 02-28-24, 10:15 AM
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No need to theorize. It definitely happened because your derailleur was too close to the ground.
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Old 02-29-24, 02:37 AM
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Well it wouldn't have broke if the spoke had been on the bottom, tension is reduced there.

My work is done here.
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Old 03-01-24, 09:56 PM
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Back in business

  • Broken spoke & rim tape replaced
  • Spoke tension checked & wheel trued
  • Spare spokes in drive and non drive side sizes purchased
Parts & Service: $13



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Old 03-12-24, 05:14 AM
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Old 03-16-24, 06:53 AM
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Change log

  • Installed a new Schwalbe Marathon Supreme 42-406 tire in the rear.
  • Installed new brake pads in the rear

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Old 03-16-24, 07:50 PM
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And it's not even 10AM.
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Old 04-13-24, 06:56 AM
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