Unanswered Questions

13
votes
0answers
130 views

Construction hints for a sociable dicycle?

I'm thinking of building a dicycle, specifically a sociable one like the picture below but pedal powered. Has anyone seen one in real life, or better yet, tried to build one? The broad design is ...
5
votes
0answers
120 views

Flashpoint FP80 / SRAM S80 - rear hub specifications?

I'm looking for the specs of a SRAM S80 rear wheel hub. I dearly wish to replace its 9/10-speed freehub body with one that can accomodate Shimano 11-cog casettes. SRAM S80 was a 80mm-profile aero ...
3
votes
1answer
95 views

How to route shifter cables along frame to a Rohloff external gear mech?

I am currently converting my Rohloff's gear mech from the internal to external version, and I’d like to route the shifter cables along the downtube and chainstay. However, I’m not sure how to route ...
3
votes
0answers
111 views

Accurately replicating the resistance felt whilst riding via a resistance fan diy turbo trainer

If I were to build my own Lemond Revolution style turbo trainer (link below) could I use the air speed in meters/second^2 the rider is moving into as a good indicator of what type and size of fan to ...
3
votes
0answers
239 views

My BionX system won't work in assistance mode, and makes a weird noise

I've had to remove and reinstall my rear wheel because of a flat, and now the BionX system has stopped working correctly. When I turn it on, it works fine, and the regenerative breaking works fine. A ...
3
votes
1answer
273 views

How can I fix my rear derailleur's B-tension adjustment?

I've noticed that my rear derailleur (Ultegra 6700) will not return to where I've set the B-tension adjustment. Pulling it away from the hanger means it will just stick there, or maybe move back a ...
3
votes
0answers
401 views

Change the angle of the arc of downtube / stem shifter lever to make it an alternative thumb shifter?

I want to mount the following SunRace clamp-on shifter set horizontally as a "thumb" shifter on a straight MTB handlebar (22.2mm). I will remove the left lever and only use the right with the clamp. ...
2
votes
0answers
50 views

Is this issue possibly related to a defective damper? (Fox Evolution 2013)

I have a 2013 Fox Evolution fork on my bike (bought new by me) that is subject to recall due to some forks having defective dampers. I've been riding with a suspension fork since 1996, and I have ...
2
votes
0answers
161 views

Why do my pedals shake and pop?

Just purchased a cruiser bike online that i had to assemble. When i rode it for the first time, i notice my pedals felt shakey, whether pedaling or coasting, and when i did pedal every few seconds ...
2
votes
0answers
47 views

Another stem diameter question (French steerer)

The steerer in the French bike I'm restoring has about .2mm less diameter than "regular" ones. With some grease, I manage to fit the "regular" cinelli stem I will use into the steerer. (Mine is the ...
2
votes
0answers
43 views

Can you identify this Sachs hub?

I recently picked this up along with a couple of old wheels. I don't know it's age or history. I've only got as far as identifying it as a Sachs. There are no other markings apart from the logo ...
2
votes
0answers
74 views

takhion-esque track frame identification!

I thinking on buying this very lightweight track frame that is very similar in looks to those beautiful takhion pursuit frames from the urss 80's. I was told that brazilian cycling federation bought ...
2
votes
0answers
43 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: ...
2
votes
0answers
45 views

Buying Brakes for custom kick scooter with 12" diameter bmx wheels

I need to buy brakes for a custom kick scooter. The steel tubing of the entire frame is 1" in diameter. How do I know what size brakes to buy?
2
votes
1answer
143 views

Sachs- Huret derailleur (re)installation

Sachs - Huret derailleur installation So the learning curve continues on the '85 Peugeot P-16. The main lessons are to take pictures and time getting each thing done. I have the rear derailleur ...

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