Hot answers tagged

10 votes

How do I install a quill stem extender?

Sorry - you have the wrong part, or need a second part to make it all work. The item on the right is a quill stem to threadless adapter, and if you used it to replace your current stem it would ...
Criggie's user avatar
  • 123k
4 votes

Presta to Schrader valve adapters that don't screw on the valve core

SKS makes a press-on adapter. Unscrew the valve nut, push the adapter on, use the schraeder head on the air hose, pull the adapter off and thread the valve nut back down. Tell your shop it's p/n ...
Mike Smith's user avatar
4 votes

Presta to Schrader valve adapters that don't screw on the valve core

Never seen one myself - there are pumps that have push-on "speed" adapters for presta, but they are part of the pump head and you wouldn't find one at the service station. The best fix is to ...
Criggie's user avatar
  • 123k
3 votes

Fit a M3 metal screw into a M5 hole

OPTION 1: The item you're looking for is indeed a Rivnut These are not unique to bikes, but the M4 and M5 size is very commonly used for holding water bottle cages in place on a a thin piece of metal ...
Criggie's user avatar
  • 123k
3 votes
Accepted

Adapter to use straight fork in tapered steerer semi-integrated?

The good way of doing this is to use a reducer crown race. That way you're not doing anything weird to the stack height. The big headset makers all have their own version of such a part and they ...
Nathan Knutson's user avatar
3 votes

Adapter for 15mm front fork to fit a 12mm front hub?

There's not a generic part that does what you want it to do here. Thru-axles are part of the structure of a frame or fork. Even if it wouldn't really matter in most cases, making a generic aftermarket ...
Nathan Knutson's user avatar
2 votes

Adapter for 15mm front fork to fit a 12mm front hub?

While it's not a common problem, there are companies like JJBP that make the specific kit you would need, that consist of frame inserts and a correct length through axle. The kits tend to be specific ...
Noise's user avatar
  • 13.9k
2 votes

How do I install a quill stem extender?

I was in the exact same predicament, same items, same confusion. There is a very easy solution. You need a longer quill. You're raising it up so the Quill/Wedge that attaches to bike stem would have ...
Jan's user avatar
  • 21
2 votes

Rear dropout nut constantly slipping

It's important to figure out the root cause(s) in this situation, but there's not enough information here to do so. If you don't figure out the first thing to have gone wrong, it's likely to repeat. ...
Nathan Knutson's user avatar
2 votes
Accepted

15mm thru-axle hub on 12mm axle: sleeve adapter vs endcaps

Model-specific endcaps are always the superior solution. If they exist for a given hub, you know they will work. Universal adapters that do this threaten to be gimmick products. There's nothing that ...
Nathan Knutson's user avatar
2 votes

Adaptative Pedal or crank for a handicap user

I did a quick google image search for the terms "cycling leg prosthesis", And I see two main trends in the pictures: Some rides appear with prosthesis that have a foot, and seem to simply ...
Jahaziel's user avatar
  • 12.5k
1 vote

How do I install a quill stem extender?

A quill stem extender looks like this: A quill stem adaptor looks like this: If you have a quill stem extender here's how it should be installed. I always put wheel bearing grease on the wedge - ...
David D's user avatar
  • 21.1k
1 vote

Adapter for 15mm front fork to fit a 12mm front hub?

Thanks everyone for answering and I think the smartest option is to rebuild the wheel with a 15mm hub. JJBP looks like the best option but the price is a little challenging.
Adam Jones's user avatar
1 vote

Adapter for 15mm front fork to fit a 12mm front hub?

Essentially you're trying to make a 15mm shaft fit through a 12mm hole. Adapters won't do it, you need a replacement through-axle for your specific frame. Even then, the axle has to fit a 15mm hole ...
Criggie's user avatar
  • 123k

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