LB AR25 rims for all road biking

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Pyotrump
Posts: 133
Joined: Wed Jun 07, 2017 12:01 pm

by Pyotrump

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AR25 rims (I asked for a fortified version. Each rim is 30g heavier than the original. 60g added in total.)
ID 24mm OD 29.2mm
paired with BItex 312hubs

: 1124g


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R: Conti gp5K 25c clincher
F: Corsa speed G+ 2.0 25c tubeless

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F: 18g sealant and 7g valve (There's no access hole so no need for tape)
R: Ridenow TPU 30g

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Miscellaneous items..


Total: 2007g... oopsy slightly heavier than 2Kg..


Feels super nimble. At first I was so worried about its max pressure limit (28c 70psi, 25c 75psi) but all my worries were for the naught..

25c tires are 29.2~29.4mm when inflated @65psi

Ytse
Posts: 287
Joined: Thu May 05, 2022 11:53 am

by Ytse

Is it safe to ride 25c tyres on a rim with 24mm ID?
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Aeo
Posts: 668
Joined: Wed May 25, 2016 2:06 am

by Aeo

These rims have a "mini-hook", so it's safer than on hookless rims, but I would say don't do it
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Pyotrump
Posts: 133
Joined: Wed Jun 07, 2017 12:01 pm

by Pyotrump

Ytse wrote:
Sun May 21, 2023 8:30 am
Is it safe to ride 25c tyres on a rim with 24mm ID?
I think it is not... but LB said 25c is compatible with their product and there's no other option but to trust their words haha..
Last edited by Pyotrump on Mon May 22, 2023 4:58 pm, edited 2 times in total.

Pyotrump
Posts: 133
Joined: Wed Jun 07, 2017 12:01 pm

by Pyotrump

Aeo wrote:
Sun May 21, 2023 10:59 pm
These rims have a "mini-hook", so it's safer than on hookless rims, but I would say don't do it
Yes indeed.. I know that it is risky but can not help but choose 25c for weightweeniesm. I just get relieved by the fact that those rubbers are slightly fatter (29.2~29.5mm) than the rim (29.2)

kode54
Posts: 3749
Joined: Tue May 23, 2006 9:39 pm

by kode54

Aeo wrote:
Sun May 21, 2023 10:59 pm
These rims have a "mini-hook", so it's safer than on hookless rims, but I would say don't do it
Yes...its a hybrid hook/hookless design. I think this is a nice inbetween for those that are concerned about hookless and tires blowing out.
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gshb
Posts: 30
Joined: Mon Jun 03, 2019 6:06 pm

by gshb

Just curious why you use clincher for rear and tubeless for front? I did ask LB if clincher can be used on AR25 with mini hook (or hybrid hook) and they said yes, despite GP5k saying on the tire itself it must mount to hooked rims.

Pyotrump
Posts: 133
Joined: Wed Jun 07, 2017 12:01 pm

by Pyotrump

gshb wrote:Just curious why you use clincher for rear and tubeless for front? I did ask LB if clincher can be used on AR25 with mini hook (or hybrid hook) and they said yes, despite GP5k saying on the tire itself it must mount to hooked rims.
There's no specific reason. That was just because I have them..

At first, I mounted pro one tl laying around but found that was leaky so swapped it with 5k, which was also laying around in my house.

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eucalyptus
Posts: 527
Joined: Thu Mar 19, 2020 3:51 am
Location: Sweden

by eucalyptus

Fortified version in this case means reinforced rims? Are they reinforced over the regular rims or just standard rims and you did not choose flyweight option? Interesting what your body weight is hence the fortified rims.

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Pyotrump
Posts: 133
Joined: Wed Jun 07, 2017 12:01 pm

by Pyotrump

eucalyptus wrote:Fortified version in this case means reinforced rims? Are they reinforced over the regular rims or just standard rims and you did not choose flyweight option? Interesting what your body weight is hence the fortified rims.
There' no "Flyweight" option for AR25, IMO LB provides those rims with flyweight option as default. I asked for a fortified (in other cases like ar 45 "Default" option) version and LB asked back "how much fortification are you looking for?"
Then I said that I am a 80+kg rider and going to use the wheelset at harsh gravel course. Lb suggested 30g addional carbon layup.

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