I machined a custom Sturmey-Archer Hub Shell back in the day! I also produced for a local hardware store custom axle nuts for S-A hub Axles!
On Mon, Mar 25, 2024 at 8:24?PM mike allen <
animal@...> wrote:
Back in the day if yer bike came with Mafac brakes it also came
with a little tool set maybe the size of a pack of regular cigs .
That little tool kit & Crescent wrench were the only tools
some bikes ever saw during their lifetime after getting bucked in
the bike shop . A lot has changed in the bike world since I left
it .
thanks
animal
On 3/25/24 5:17 PM, Chris Albertson
wrote:
At least today the pedels all use the same thread. ? But so much
else is totally custom.? Like the tapered-head titanium cap
screws. ? One newish innovation is that all the screws on my bike
are marked with a “Min and Max torque” value. Something like “5 -
7 newton meters” by every screw. ? ?I think this happened when
they went with carbon fiber.
I have NEVER heard of anyone usimng machine tools to work on
a bicycle. ? It is just not done.
Back when I was still into bikes & Campagnolo
ruled everyone had to use different threads in their
bottom brackets & pedals . I had/have a Set of TA
cranks & chain wheels & the threads were
different between? TA , to Stronglite , &? Campy
crank sets . I was so pissed when my new to me Campy
blacktop pedals wouldn't fit the cranks . It's
actually probably good that I didn't have a mini lathe
or any lathe & mill for that mater back then. I'm
sure I would have ruined a lot of expensive parts by
fixing them .
animal
On 3/25/24 2:05 PM, Chris
Albertson wrote:
The thing
about bicycle parts is that they use a lot of
non-common threads and gear profiles and screws
with custom head shapes, not to mention exotic
metals and tempering. ? for example, you can look
at a standard bottom bracket and find?34.92mm
diameter threads.? Not a hardware store size.? You
might measure and?think “35mm”
and be wrong. ??
I don't know
the specs on the gear you need but, there is a
good chance is it a custom-size or profile.
