6 votes
Accepted

Stem top bolt wouldn't screw in after transport

It sounds like your steerer plug dropped down slightly during transport. This would indicate it wasn't torqued sufficiently. This could be an issue of maintenance or it could have come from the ...
shox's user avatar
  • 976
5 votes

Stem top bolt wouldn't screw in after transport

When you say "top stem bolt" what I am assuming you mean is the bolt used to preload the headtube bearings while aligning and tightening the stem to the steerer tube. That top stem bolt is ...
Ted Hohl's user avatar
  • 6,142
5 votes

Stem top bolt wouldn't screw in after transport

The top bolt is there for preloading the headset before you tighten the stem, it doesn’t provide the clamping force on the steerer. Provided the two side clamp bolts on the stem are up to spec (...
Warren Burton's user avatar
4 votes
Accepted

Feasibility of upgrading a recent bike from a mechanical to an electronic groupset

On the technical feasibility: Note on brakes: most current electronic groupsets are provided for hydraulic disc brakes, so obviously, a frame designed for rim brakes won't work (Ultegra is for ...
Rеnаud's user avatar
  • 20k
4 votes
Accepted

How do I reattach a screw to my front wheel's V - brakes, if it has come out? [Pictures attached]

Your problem is more than just a screw coming out, a key piece of the lever arm is broken. The part that broke off is used to tension in, but the fact it got ripped off means the rest of the lever ...
whatsisname's user avatar
  • 12.1k
3 votes
Accepted

Unmounting a stuck rear derailleur

It appears that the pivot bolt is corroded solid with the body of the derailleur. WD40 doesn't do much for aluminum oxide corrosion. You could try a torch on the affected area. Direct it near the ...
Nathan Knutson's user avatar
3 votes
Accepted

How to temporarily plug hydraulic brake hoses to route them through frame without leaking fluid

Normally you would route the hydraulic line before filling up the system and thus the line will be dry and clean. Once routed through the frame people rarely remove and reuse them, so your problem is ...
Art Gertner's user avatar
  • 2,597
3 votes
Accepted

Should this bolt be tightened?

That is the B-axle. It should be tightened to 8-10 Nm using a 5 mm hex key. Here is an excerpt from the dealer's manual to illustrate this:
olliebulle's user avatar
  • 4,109
2 votes

How do I reattach a screw to my front wheel's V - brakes, if it has come out? [Pictures attached]

You can’t fix this. The plastic that the nut was embedded in has been torn away. Luckily your brake is a construction of plastic over sheet metal so it’s not a terminal issue as long as the brake is ...
Warren Burton's user avatar
2 votes

Unmounting a stuck rear derailleur

Well that's a puzzle ! I am not familiar with this derailleur, so here's my guess: You appear to have a bike frame with an integrated hanger, as in not easily replaceable. So any damage could write ...
Criggie's user avatar
  • 124k
2 votes

Dangerous feature on a new 20" wheel kids bike? EZBuild pedals

This is garbage. My nine year old is an inexperienced bike rider. No tricks, no hard use. After a year the pins that lock the pedal in place have bent and now the pedal will no longer hold its ...
Jarid's user avatar
  • 21
1 vote
Accepted

TEKTRO Road Bike Mechanical Disc Brakes MD-C550 Pads

I had the same issue with the Trek Domane AL 2 Disk but successfully used the E10.11 with the MD-C550 disc brakes as replacement pads.
delphinus's user avatar
1 vote

Avanti barrel/cylinder nut replacement?

UPDATE: More info: https://bicyclenetwork.com.au/newsroom/2020/05/21/seat-clamp-defect-triggers-avanti-recall/ This may or may not cover your bike. At first look, the nuts are some kind of barrel/...
Criggie's user avatar
  • 124k
1 vote

suddenly can't shift up?

Can you see if the cable is fraying at or near the end that's in the shifter? If so, the cable will have more play in it, so it shifter will hit the stopper before the derailleur can shift the chain (...
Marc Bernier's user avatar

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