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Unanswered Questions

7
votes
0answers
164 views

Please help identify my 1940's (?) Tandem Bicycle

Please help me identify this tandem bicycle. Here's what I know: I'm pretty sure it's not a Schwinn, as all Schwinn bikes had straight frames without curves. From what I can tell, Hawthorne used ...
6
votes
0answers
294 views

Can someone help identify my vintage bike frame?

I don't know a lot about bikes and bought this frame about 5 years ago in Montreal. It was repainted and looks like an old touring frame. It is very light steel, very low (close to the ground), doesn'...
5
votes
1answer
86 views

Can I put a 9mm axle hub with a Shimano roller brake into a 3/8" fork?

I have a Gazelle dutch bike which I want to upgrade with a front dynohub. It currently has a Sturmey Archer drum-brake hub dated 1988, which I believe to be a SBF model. I bought a wheel with a ...
5
votes
0answers
164 views

Extraterrestrial thing found in my suspension fork!

I have recently disassembled my suspension fork and found an extraterrestrial piece of rubber in the coil spring. After some highly accurate measuring it was safe to say that this rubber piece is ...
5
votes
0answers
94 views

Swain Power-HR relation

I am trying to understand how to use Swain HR to Power equation in my case. Here is a calculator where one can vary the inputs and see the various outputs based based on the equation: http://www....
5
votes
1answer
414 views

Cylinder volume of hydraulic brakes and levers

I've been asking around for a while now but even workshop pros couldn't answer this (by citing exact figures): How big are the brake cylinders of disk and rim brakes in terms of volume and surface ...
3
votes
0answers
131 views

What is considered a small hand for shimano?

The new shimano r7000 offers two options r7025 and r7000 in the brake levers, the first one is for small hands. What is considered small hands?
3
votes
0answers
47 views

Pannier Bags for Burley Kazoo

I have a burley kazoo trail-a-bike, which my five year-old and I are really enjoying. When not trailing my 5yo, I can easily put my Arkel pack onto the burley rack, but its attachment points don't ...
3
votes
1answer
162 views

Using Rohloff with a thicker chain

I have a Bosch/Rohloff bike that currently uses a 3/32 chain. Seems like that's the standard for Rohloff hubs. Problem is, I'd much rather use a 3/16 chain, i.e. a chain that's exactly twice as thick. ...
3
votes
0answers
80 views

Help Identifying Italian track frame

Hi I would like to know the maker of this bike I brought back from my stay in Italy. It has been repainted, It isn't the original fork, and the serial located on the top of th bb is :1148591 Any clue ?...
3
votes
0answers
116 views

Measuring fork steerer diameter

I've acquired a Raleigh Suntour (circa 1990s) frame which I am re-fitting. I need to refit the headset and so I need to know the dimensions of the steerer column. The frame had an threaded stem. I've ...
3
votes
0answers
272 views

Help identify this loop frame bike

I'm trying to find out more information about this old loop frame bike I'm planning to refurbish. I haven't found any other marks that may be identifying, if there's anything else I can take a photo ...
3
votes
0answers
120 views

Convert Sturmey-Archer AW hub to AWC

I have a 1972 Schwinn Breeze with a Sturmey Archer AW 3-speed hub (no coaster brake). I would like to replace the internals of the AW hub with the internals of an AWC hub (which has a coaster brake). ...
3
votes
0answers
131 views

Bolts don't fit for Stronglight ring on Athena 11s

I wanted to replace my ring on my Athena 11s Compact Crank (from 2014) and bought a Stronglight Ring (CT2 Road, Campagnolo 11s, 5-Arm, 110mmBCD). Unfortunately the Ring Bolts are one or two ...
3
votes
0answers
3k views

Shimano STX rear shifter, broken spring

I have to repair a Shimano STX shifter 7 speed (from a Raleigh MT200 bike from 1995). It has a broken spring, and I am almost sure that is the only thing to be repaired. It is similar to that ...

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