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  • The Bears do Twiteys: 09 May, 2024 - 13 May, 2024

Author Topic: Twitey's camping break - May 9th through 13th, 2024  (Read 8485 times)

robgul

  • Cycle:End-to-End webmaster
  • cyclist, Cytech accredited mechanic & woodworker
    • Cycle:End-to-End
Re: Twitey's camping break - May 9th through 13th, 2024
« Reply #75 on: 19 May, 2024, 07:31:27 pm »
I rode along the lane by the Wellesbourne airfiled today - just as they were running up the engines on the V bomber parked there* - the noise was amazing.

*they do it a couple of times a year - they used to drive down the runway and "abort the take-off" but it got too expensive to do with the amount of fuel it used.

Re: Twitey's camping break - May 9th through 13th, 2024
« Reply #76 on: 22 May, 2024, 09:34:31 am »
It turns out that the rear gear mech is a 10 speed now running a 11 speed cassette. Tame mechanic has attacked it with a hacksaw and file and the full cassette can be used effectively. My knees are pleased  :)
the slower you go the more you see

chopstick

  • aka "freiston" in other places
Re: Twitey's camping break - May 9th through 13th, 2024
« Reply #77 on: 22 May, 2024, 10:33:29 am »
That's interesting - I might be demonstrating ignorance but I presume that the 10 speed mech has the same total travel ability as an 11 speed mech and different cable pull requirement for indexing - which wouldn't be an issue with a friction non-indexed shifter - so was it the total amount of cable pull required to get the full range and was the filing done at the shifter end to allow a greater range of cable pull?

Cudzoziemiec

  • Ride adventurously and stop for a brew.
Re: Twitey's camping break - May 9th through 13th, 2024
« Reply #78 on: 22 May, 2024, 01:22:27 pm »
Some newer 10-speed mechs, I think the 10-speed 105 (4700?), use the 11-speed pull ratio. Is that what you have?
Riding a concrete path through the nebulous and chaotic future.

Kim

  • Timelord
    • Fediverse
Re: Twitey's camping break - May 9th through 13th, 2024
« Reply #79 on: 22 May, 2024, 01:28:11 pm »
Interested how any change to the mech has solved the chain-dropping-off-the-top-of-the-sprocket problem...

chopstick

  • aka "freiston" in other places
Re: Twitey's camping break - May 9th through 13th, 2024
« Reply #80 on: 22 May, 2024, 03:17:49 pm »
Oops! That's a point, Kim - searching to make sense of "the cure", I had overlooked what the actual problem was  :-[

Re: Twitey's camping break - May 9th through 13th, 2024
« Reply #81 on: 22 May, 2024, 07:06:17 pm »
Basically the mod changed the angle of the cable and increased the amount of pull available allowing proper engagement of the big cassette sprocket  :) I am running a friction system  :)
the slower you go the more you see