PSA: rear gravel wh...
 

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PSA: rear gravel wheel (but what is it?)

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Posts: 98
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Merlin currently have a DT Swiss rear gravel wheel for £99. Seems a reasonable deal and very timely, after pulling a spoke through the rim of my grav/commute bike's back wheel today:

https://www.merlincycles.com/dt-swiss-ln-gravel-disc-rear-wheel-700c-262050.html

Merlin confirmed that the inner rim width is "23-24mm", upon measurement. Hub I'm guessing will be pawl not ratchet, but at this price point that's not a concern.


 
Posted : 27/07/2022 10:14 am
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If the title is accurate its a rachet isn't it. LN is 370 with 18t ratchet.


 
Posted : 27/07/2022 10:23 am
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I'm not sure but that would be nice if it were. Where did you find that info? All I managed to Google led me to stuff about Canyon bikes, with DT's sites listing only GR 1400, 1600 & 1800 gravel wheels.

EDIT: Found the LN blurb now. Thanks for the pointer. Is the special grease specified actually special?


 
Posted : 27/07/2022 10:35 am
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i posted on this a few months back, its a nice wheel, although still yet to stick it on my bike.

my picture here shows the star ratchet
https://www.hotukdeals.com/deals/dt-swiss-ln-gravel-disc-700c-rear-wheel-ps99-at-merlincycles-3933326

Full Details

Rim based on G540 24H
Rim: Aluminium, Clincher
Profile (Depth) : 25mm
Internal Rim Width: 24mm
Brake Surface: Disc
24H 24 spoke
Hubs DT 370 ln star ratchett, 12x142
Freehub: Shimano 10/11 HG driver
Rotor Mount: Centrelock
Spokes: DT Aero Comp, Straight pull
Other: Includes: Rim Tape
full Weight: Rear 1125g

note i couldnt find a 24H G540 front Rim if you were looking to match a front wheel.
some in germany available, my local shop would do a 28 or 32 hole dt370/g540 for £105-110

some useful info on here
https://singletrackmag.com/forum/topic/dt-swiss-ratchet-ln-compatibility/


 
Posted : 27/07/2022 2:12 pm
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Sounds nice but 1125 grams makes it an absolute unit.


 
Posted : 27/07/2022 2:16 pm
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There must be lead in it to weigh that much.


 
Posted : 27/07/2022 3:15 pm
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Is the special grease specified actually special?

Ratchets are pretty sensitive to the grease you use and its consistency, too thick and it can prevent the ratchets meshing properly, too thin and the pressure from the springs will push it out from between the ratchet surfaces so they end up running dry.

You only need a tiny amount each time so even the little tubes last years.


 
Posted : 27/07/2022 3:55 pm
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@whatyadoinsucka, thanks for the details. I didn't realise this had been posted before.

full Weight: Rear 1125g

Err, lol. What a chonk. That is excellent. More weight, more gainz...

@hatter, thanks for the note. I've read about the thickness being important for the reasons you mention and a small tube of special stuff lasting for eternity, but it'd good to hear this from (I assume) a user and on this site.


 
Posted : 28/07/2022 8:33 am
Posts: 98
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Got the wheel yesterday after ordering late Tuesday, following some swiftly-answered emails. I like dealing with Merlin.

Observations:
- The spokes are seemingly plain gauge and J-bend, not aero straight-pull as in the spec
- The rim seems on the small side, in that my tyres were petty baggy when fitted. I needed to use an inner tube to seat the tyre before I could unmount one side to de-tube and then inflate tubeless to re-pop that side. Previous rim was a nice snug hand-fit with the tyre and I could track-pump up tubeless from 0psi
- The gap in the rim at the join isn't the best I've seen and did leak a significant amount of air and some sealant before it got tubeless 'fixed'
- The ratchet is very quiet when freewheeling along, almost imperceptible. V. lightly greased from the factory, as expected.
- I did not die riding to work today


 
Posted : 29/07/2022 9:22 am

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