Hello all.

I’ve got some Pacenti CL25’s in mind for a wheel build for my ‘cross / gravel / commuter bike.

I’m wondering if there are any others that will safely take tyres with tubes at pressures up to 80psi?

I like to run 28s or 32s, anywhere from 40-80psi. I am not into deep section rims – hence the CL25’s work for me, but they can’t be the only ones?

Stan’s seem pretty cagey about using anything over 60psi even with a tube.

Thank you – all help much appreciated.

Stan’s seem pretty cagey about using anything over 60psi even with a tube.

I thought that was only for tubeless?

DT RR421’s or R470’s fit the bill.im running 421’s on 32’s ATM and they’re pretty bang on.

They also do the R500 which is even wider but really designed for 35+

I ran stans grails at with a tube in 80-90 psi no worries

Hi all, and thanks!

Yeah I’d like to use Stans but the advice isn’t clear, and I’ve heard a few folks reporting blowouts with tubes.

I’ll check out the DT wheels. A 9mm thru axle option on the front would be a bonus too as I’m using a Cotic steel fork

h plus son hydra

I have some h plus sons Hydras – no idea on maximum pressures but they are hardcore enough to put up with my cack handed jumping off kerbs etc.

Nowt wrong with the CL’s. I use them at everything from 40 to 100 psi. Asked the importer who suggested that it wasn’t any thing to worry about but to tlak to the tyre supplier.

Pacenti SL25?

Stan grail, good for 115psi according to them linky

+1 for Grails. 100psi all year with no problems (Schwalbe One Pro 28 mm)

Tim… linky no worky. Interested though.

Will check out the Hydras Jim.

Yeah I like CLs.

Grails again here with tubeless 28mm Schwalbe Pro ones. Also have Pacenti SL25s running G-One Speed 40s at 50+psi, again tubeless.

I am using Mavic XC421 and running 23c tyres at around 100 PSI with tubes. Have been fine with tubes but guess they wouldn’t be tubeless at 100PSI

The new 2017 Grail Rims claim that you can run 25-32mm tyres with or without tubes up to 115psi.

I’m running 28mm tyres at 90psi on Stan’s Grails.

According to Stan’s website, Grails are good for:

Max Pressure with 23mm Tire: 116psi
Max Pressure with 28mm Tire: 100psi
Max Pressure with 32mm Tire: 45psi

Also printed on the rim:

That’s the older version. The new rims use BST-R rather than just BST.

Ok, so there seem to be 3 sources of information:
[list]
[*]”Archive” Grail page, which is what I linked to above.
[/*][*]”New” Grail page, which has different figures under “specs”.
[/*][*]BST-R tech page, linked from both, which states “115 psi max for 25-32mm”.
[/*][/list]

The Hope 20Five rims go to high pressure.

I believe Stans Alpha 340 or 400.
Road specific tubeless rim.
Running tubeless at 90psi can’t see why you can’t run tubes in them at that pressure?
I thought a lot of the limits on the rims were to do with tubeless tyres blowing off rims ?
Not so much a problem with tubes at higher pressure?
Thanks,
Max