Unanswered Questions

6
votes
1answer
192 views

Identify this shaft driven bike for me

This is the bike wich I can't neither identify the manufacturer nor the year it was produced; it has a serial number on the frame, just above the front fork, something like 93042829 or so what ...
5
votes
0answers
51 views

Shimano Nexus 3 (SG-3C41) 2 and 3 gear problem - Ring Gear Unit Repair

I have this internal gear hub and i try to fix it. 1st gear is ok. On 2nd and 3rd gear, especially when I run faster, the hub is not engaging properly, missing engagement sometimes. It is not problem ...
5
votes
0answers
84 views

Is changing wheel necessary if freewheel hub with a different speed then previous is attached?

Approx. 3 weeks ago I have found an abandoned frame (including steering wheel, fork, brakes, pedals and shifting gears attached to it). I decided to use it to build a new bicycle since only recently ...
5
votes
1answer
223 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 ...
5
votes
0answers
147 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 ...
4
votes
0answers
50 views

Can you indentify this vintage Moor MTB

I've recently acquired this bike: The Moor brand seems to be coming from Denmark. However, the SFMK CSCM sticker seems to be referring tot the "Suisse Motorbike and Bicycle Union". The bike was ...
4
votes
1answer
66 views

My santa cruz heckler ghost shifts from frame flex. Is there anything I can do?

I just bought a 2013 heckler used and found that it ghost shifts under heavy pedaling. I weight 230 so I am probably putting more pressure than average. But this only happens when I have smallest cog ...
4
votes
1answer
83 views

Replacing Crankset

My dad bought a 2004 Fuji Absolute hybrid used and I rode it to a DIY shop to get everything checked out. On the way, the the chain came off once (1.5mi). Turns out the right crank arm is a little ...
4
votes
0answers
41 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 ...
4
votes
0answers
131 views

Proper tubular tire installation

I'm trying to install a new tubular tire once again. The problem is every time I do this I always get it wrong because I always have this area (let's say 10-15cm each way) around the tire's valve that ...
4
votes
2answers
359 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 ...
4
votes
0answers
464 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. ...
3
votes
0answers
43 views

Clear coat on top of old paint in order to preserve it/frame?

Using nail polish to touch-up scratched/rusted frames is more or less well-known (cf. Girls Biking to Work), but recently a hobbyist restorer of old bikes told me that you can "just apply clear coat ...
3
votes
0answers
35 views

Reassembling Shimano FH-M150 rear hub

First time servicing a rear hub for me. I disassembled and cleaned my Shimano FH-M510 rear hub, removing the nut, washers and cone only from the left side of the axle. When I went to insert new ...
3
votes
0answers
18 views

Should I stick to the fork oil weight specified?

I've got a pair of Rockshox Reba race forks. I'm going to service them. Fork oil weight says 5wt but in the past I have generally used a heavier oil weight 7.5 / 10 wt due to my size. However, saying ...

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