New Style Derailleur Hangers?

[fignon's barber]

Was looking at a youtube feature on TDU pro bikes, and many this year are using a new style custom derailleur hanger, like the one pictures. Maybe to accommodate the larger cassettes in vogue?

[unterhausen]

that's a direct mount derailleur. Requires either a direct mount hanger or a b link

[efixler]

Why is this thing called direct mount when it appears to be precisely the opposite?

[ScottW]

For the same reason you clip in to clipless pedals.
Similar logic explains why you drive on a parkway and park in a driveway.

[Lewis Moon]

Originally Posted by scottw

for the same reason you clip in to clipless pedals.
Similar logic explains why you drive on a parkway and park in a driveway.

potd

[FlashUNC]

Originally Posted by fignon's barber

Was looking at a youtube feature on TDU pro bikes, and many this year are using a new style custom derailleur hanger, like the one pictures. Maybe to accommodate the larger cassettes in vogue?

More for the thru axles teams are using than the cassettes.

[Mark McM]

Originally Posted by ScottW

For the same reason you clip in to clipless pedals.
Similar logic explains why you drive on a parkway and park in a driveway.

But you don't "clip" into clipless pedals. You "click" into them. "Clipping" into pedals is a bastardization. Similar to how people some people erroneously refer to wheels with deep-section rims as "deep dish" wheels. The dish of a wheel is due to a differential in flange offsets/spoke bracing angles, and has nothing to do with the depth of the rim. (It's also a bit imprecise to refer to wheels that use a separate brake rotor as "disc wheels", when that term refers to wheels built as a solid disc.)

[palincss]

Originally Posted by Mark McM

But you don't "clip" into clipless pedals. You "click" into them. "Clipping" into pedals is a bastardization. Similar to how people some people erroneously refer to wheels with deep-section rims as "deep dish" wheels.

Because, like a deep-dish pizza, they have a thick crust (the crust being the rim portion).

Originally Posted by Mark McM

The dish of a wheel is due to a differential in flange offsets/spoke bracing angles, and has nothing to do with the depth of the rim.

Nothing whatsoever to do with wheel dish.

Originally Posted by Mark McM

(It's also a bit imprecise to refer to wheels that use a separate brake rotor as "disc wheels", when that term refers to wheels built as a solid disc.)

"Disc wheels" as short for "wheels made for use with disc brakes".

[Mark McM]

Originally Posted by palincss

Because, like a deep-dish pizza, they have a thick crust (the crust being the rim portion).

Bad analogy. A pizza with a thick crust is more analogous to a wheel with wide rim.

Originally Posted by palincss

Nothing whatsoever to do with wheel dish.

Oh? And what controls wheel dish if not flange offset and spoke bracing angles?

Originally Posted by palincss

"Disc wheels" as short for "wheels made for use with disc brakes".

But the term "disc wheels" had already been used for decades for wheels of solid (non-spoked) construction, and still is today. Since there are solid wheels with rim brakes, spoked wheels with disc brakes, spoked wheels with rim brakes, and solid wheels with disc brakes, referring a spoked wheel with disc brakes as "disc wheels" is imprecise and prone to cause confusion. It's best to use this term as it was originally (and more appropriately) defined.

Cyclists frequently use terms that have already been (and continue to be) in wide use for other things, often because the cyclist doesn't really understand the thing they are talking about. Common examples of this are "counter-steering" and "fork rake". Counter-steering only occurs at the entry and exit of turns, but many cyclists talk about counter-steering in the middle of a turn. Many cyclists refer to "fork rake" when they mean fork offset. Fork rake refers to the angle of a fork, not the offset from dropouts to the steering axis. Motorcyclists know this, and correctly use the term "fork rake" to refer to the angle of the fork.

[Red Tornado]

Originally Posted by Mark McM

But you don't "clip" into clipless pedals. You "click" into them. "Clipping" into pedals is a bastardization. Similar to how people some people erroneously refer to wheels with deep-section rims as "deep dish" wheels. The dish of a wheel is due to a differential in flange offsets/spoke bracing angles, and has nothing to do with the depth of the rim. (It's also a bit imprecise to refer to wheels that use a separate brake rotor as "disc wheels", when that term refers to wheels built as a solid disc.)

.

[Gummee]

Originally Posted by Mark McM

But you don't "clip" into clipless pedals. You "click" into them. "Clipping" into pedals is a bastardization.

I won't touch the 2nd part, but you do indeed clip into clipless pedals. That verbage started when the 1st clipless pedals came out.

The only place I've heard of clicking into clipless pedals is in Dutch when they refer to clickpedals in the CX broadcasts.

M

[palincss]

Originally Posted by Mark McM

Oh? And what controls wheel dish if not flange offset and spoke bracing angles?

You misunderstand me: what I meant was, the term "deep dish wheels" as people use it has nothing to do with wheel dish, it's a pizza and pie shell analogy. It becomes more obvious if you look at the pizza sideways, edge on. The high crust edge looks like the profile of the rim. Looking at the rim edge on you don't see the width, only the depth. (Of course, I suspect you know that...)

I certainly didn't mean differential in flange offsets and spoke bracing angles have nothing to do with wheel dish.

[palincss]

Originally Posted by Mark McM

Cyclists frequently use terms that have already been (and continue to be) in wide use for other things, often because the cyclist doesn't really understand the thing they are talking about. Common examples of this are "counter-steering" and "fork rake". Counter-steering only occurs at the entry and exit of turns, but many cyclists talk about counter-steering in the middle of a turn. Many cyclists refer to "fork rake" when they mean fork offset. Fork rake refers to the angle of a fork, not the offset from dropouts to the steering axis. Motorcyclists know this, and correctly use the term "fork rake" to refer to the angle of the fork.

There's no doubt, many of the things cyclists say -- especially when speaking casually rather than technically, as you are doing -- are just flat out wrong. "Clipping into clipless pedals" is as good an example of this as you could find. But these things people say aren't meant to be taken literally and technically.

[Patb095]

I’m having fun reading this thread!

But coming back to the OP I would say it is to accommodate a larger cassette. That is mainly due to the mechanic principle that say the larger the couple the most efficient it is. (Rouler sur la plaque).

My guess is climber wants to keep going on the larger chainring/ cog to be more efficient and therefore less energy losses.

[FlashUNC]

Google is our friend:

https://cyclingtips.com/2019/07/ther...rance-but-why/