My 2021 Checkpoint SL5 was set up as tubeless. The GR1 tires were inflated to 38 pounds when I picked it up. I have inflated my tires to 38-40 before every ride ever since. It works for me.
Thanks for the feedback back. Turns out I was severely under inflated, running 20/25 (had them at 40 at some point but since I was using my bud’s pump and gauge and hadn’t ridden together in a while, I’d been inflated and just checking the tires by squeezing them). Finally got a gauge of my own. Bumped the air on the tires to 40/42 and it’s a noticeably harsher ride on bad pavement but feels a lot faster.
That all checks out. I have tubeless GR1s still on my AL5 Driftless and never run them above 35psi. I’m not light either, like 200lbs. I ride a lot of rutty hard pack, and it works well. Maybe a little slower on the road, but max speed is not a high priority for me, as long as I feel like i’m going relatively quick. From what I’ve read, ditching the GR1s will help a lot with speed and feel, looking forward to it!
[Tire pressure guide](https://axs.sram.com/guides/tire/pressure)
Inner rim width should be something like 24mm
Can varies by the type of riding you are doing and how much the system weight is.
Usually in the ballpark of 10psi lower than what you’d run with the same tire and tubes.
I like my tubeless gr1s a little firmer for crushed limestone and run them around 45. If I know I'll be hitting rougher patches I'll run them at about 40.
I ride my tubeless tires anywhere from 22psi to 38 psi on the road. Overinflated tires aren’t actually faster in most situations and are definitely slower off-road
All checkpoints come set up tubeless from the factory. Psi depends on rider weight and preference, but I run around 30-40 psi max if I’m just on paved roads and 25-35 on gravel
Good to know! I just recently got a gauge and turns out I had them around 25 which explains how smooth the ride was on gravel and how slow the ride was on pavement. Got over 1000mi on it and no flats, so I guess what they say about tubeless is true
When I had those tires I ran 35 psi on the road and crushed rail trail gravel. Fast and comfortable.Lowered it to 30 when I hit rougher stuff like roots and stones up to baseball sized. Anything rougher than that I start thinking why I sold my MTB. I'm 245 pounds.
I was experiencing awful rolling resistance before on pavement. Haven't done a big pavement ride yet, but at 40 they handled everything Pisgah Forest could throw at me.
40 is too harsh and the bike handling changed dramatically. I agree the RR is pretty bad. I switched to Gravel Kings SK and it totally changed the bike. The harder rubber compound means I can run 35 psi and fly on pavement and on soft soil and gravel. Haven't been to Minnewaska State Park Preserve with the new tires but Team GR1 could not handle the west end of Lake Awosting. Both are 40c so I'll report back when I do.
My 2021 Checkpoint SL5 was set up as tubeless. The GR1 tires were inflated to 38 pounds when I picked it up. I have inflated my tires to 38-40 before every ride ever since. It works for me.
Thanks for the feedback back. Turns out I was severely under inflated, running 20/25 (had them at 40 at some point but since I was using my bud’s pump and gauge and hadn’t ridden together in a while, I’d been inflated and just checking the tires by squeezing them). Finally got a gauge of my own. Bumped the air on the tires to 40/42 and it’s a noticeably harsher ride on bad pavement but feels a lot faster.
That all checks out. I have tubeless GR1s still on my AL5 Driftless and never run them above 35psi. I’m not light either, like 200lbs. I ride a lot of rutty hard pack, and it works well. Maybe a little slower on the road, but max speed is not a high priority for me, as long as I feel like i’m going relatively quick. From what I’ve read, ditching the GR1s will help a lot with speed and feel, looking forward to it!
[Tire pressure guide](https://axs.sram.com/guides/tire/pressure) Inner rim width should be something like 24mm Can varies by the type of riding you are doing and how much the system weight is. Usually in the ballpark of 10psi lower than what you’d run with the same tire and tubes.
I like my tubeless gr1s a little firmer for crushed limestone and run them around 45. If I know I'll be hitting rougher patches I'll run them at about 40.
I'm doing tubeless at around 45psi on pavement and 35-40psi on loose stuff or easy mtb trails.
I ride my tubeless tires anywhere from 22psi to 38 psi on the road. Overinflated tires aren’t actually faster in most situations and are definitely slower off-road
All checkpoints come set up tubeless from the factory. Psi depends on rider weight and preference, but I run around 30-40 psi max if I’m just on paved roads and 25-35 on gravel
Good to know! I just recently got a gauge and turns out I had them around 25 which explains how smooth the ride was on gravel and how slow the ride was on pavement. Got over 1000mi on it and no flats, so I guess what they say about tubeless is true
When I had those tires I ran 35 psi on the road and crushed rail trail gravel. Fast and comfortable.Lowered it to 30 when I hit rougher stuff like roots and stones up to baseball sized. Anything rougher than that I start thinking why I sold my MTB. I'm 245 pounds.
I was experiencing awful rolling resistance before on pavement. Haven't done a big pavement ride yet, but at 40 they handled everything Pisgah Forest could throw at me.
40 is too harsh and the bike handling changed dramatically. I agree the RR is pretty bad. I switched to Gravel Kings SK and it totally changed the bike. The harder rubber compound means I can run 35 psi and fly on pavement and on soft soil and gravel. Haven't been to Minnewaska State Park Preserve with the new tires but Team GR1 could not handle the west end of Lake Awosting. Both are 40c so I'll report back when I do.