Air pressure for e bikes on slabs rolls and chunk?

[cragginshred]

We ride 22 to 24lbs on amish bikes how much pressure for e bikes **for steeep slabs rolls and chunk?

 

[Streddaz]

We ride 22 to 24lbs on amish bikes how much pressure for e bikes **for steeep slabs rolls and chunk?

If running the same tyres, you would only need to go a couple of PSI more. I run the same in my SL but the weight it a bit closer to my normal bike.

 

[cragginshred]

If running the same tyres, you would only need to go a couple of PSI more. I run the same in my SL but the weight it a bit closer to my normal bike.

Do you ride terrain like this? Start is more slab, last half is rolls and chunk!

 

[KnollyBro]

Do you ride terrain like this? Start is more slab, last half is rolls and chunk!

Nice riding... not a lot of skidding so it sounded like you were mostly in control! For me, it depends on what tires you are using and whether you are using inserts rather than air pressure for any particular trail. For "trails" like you posted where rolling speed is not an concern, I run my tires at F18/R20 but I run Cushcore which makes up for a few PSI and adds stiffness to the sidewalls (EXO+ Maxx Grip on the front and EXO+ Maxx Terra on the back). My setup is for grip and comfort as I am old and injured so I don't want to get shaken up with every little lump on the trail. Tire pressure can make a big difference to ride quality for me. What are you running?

 

[steve_sordy]

I would normally go for a few psi up vs the pressure you would ride when not on steep slab rolls and chunk. See how it feels and then adjust up or down.

Advice a bit generic I know, but I know nothing about your riding weight, speed, riding stye, jumps etc, nor anything at all about your current tyres, whether you are tubeless, tubed, use inserts etc.

 

[cragginshred]

I would normally go for a few psi up vs the pressure you would ride when not on steep slab rolls and chunk. See how it feels and then adjust up or down.

Advice a bit generic I know, but I know nothing about your riding weight, speed, riding stye, jumps etc, nor anything at all about your current tyres, whether you are tubeless, tubed, use inserts etc.

I will go up a few pounds for sure, however None of our trails are all dirt. We have so much granite up here it's crazy

 

[cragginshred]

Nice riding... not a lot of skidding so it sounded like you were mostly in control! For me, it depends on what tires you are using and whether you are using inserts rather than air pressure for any particular trail. For "trails" like you posted where rolling speed is not an concern, I run my tires at F18/R20 but I run Cushcore which makes up for a few PSI and adds stiffness to the sidewalls (EXO+ Maxx Grip on the front and EXO+ Maxx Terra on the back). My setup is for grip and comfort as I am old and injured so I don't want to get shaken up with every little lump on the trail. Tire pressure can make a big difference to ride quality for me. What are you running?

My amish bike has cush core but because I want to be able to change my tires without dislocating a finger I am not on the E bike.
I was running XO tires which led to both sidewall and rim damage. Now I have a DD tire on it with a tube due to the rim damage
New rim en route. BTW what does F18/R20 translate into pounds?

 

[steve_sordy]

... BTW what does F18/R20 translate into pounds?

I read it as Front 18psi, Rear 20psi (psi = pounds per square inch)

 

[KnollyBro]

My amish bike has cush core but because I want to be able to change my tires without dislocating a finger I am not on the E bike.
I was running XO tires which led to both sidewall and rim damage. Now I have a DD tire on it with a tube due to the rim damage
New rim en route. BTW what does F18/R20 translate into pounds?

I only use Maxxis tires so I have never heard of XO tires. F18/R20 refers to front 18 PSI and Rear 20 PSI (I weight around 180 lbs).
Around Vancouver and Squamish, we also have grippy granite but I don't know why you would want to go up in tire pressure on slabs as they can be so gnarly and chunky, which for me, shakes the crap out of my arthritic wrists. As for Cushcore, do you find it difficult to install or remove a tire? I don't have any troubles putting a tire on but breaking the bead can be a bitch as the sealant acts like a glue on the already tight rims.

 

[cragginshred]

I only use Maxxis tires so I have never heard of XO tires. F18/R20 refers to front 18 PSI and Rear 20 PSI (I weight around 180 lbs).
Around Vancouver and Squamish, we also have grippy granite but I don't know why you would want to go up in tire pressure on slabs as they can be so gnarly and chunky, which for me, shakes the crap out of my arthritic wrists. As for Cushcore, do you find it difficult to install or remove a tire? I don't have any troubles putting a tire on but breaking the bead can be a bitch as the sealant acts like a glue on the already tight rims.

Good to know! I've rock climbed Squamish but never rode there. The extra air pressure was in relation to using a tube until I get my new wheel

 

[rod9301]

I have a 52 lbs e bike, ride rocky trails, with Eddie current tires at 17psi, with cush core inserts.

Never any problems

 

[KnollyBro]

Good to know! I've rock climbed Squamish but never rode there. The extra air pressure was in relation to using a tube until I get my new wheel

What kind of wheels are you running? I use WeAreOne wheels. They have a lifetime replacement and several of my Bros have had to use their warrantee without issue.

 

[surlyrides]

Where is that trail? I ride Squamish a lot with e-bikes, similar terrain. I weigh 165 and I run carbon rims so I do run cush core in the rear. I run 25 rear and 23 front. You don't need that much more pressure than Amish

 

[darwink1]

Most of our trails are super chunky with lots of square edged hits and bedrock. I run 23-24 up front and 26/27 out back. Im using dh casing/max grip maxxis tires with cushcore front and rear.

I think pressure has a lot to do with rider weight so a heavier person would run slightly higher pressures. I'm 265 geared up on an sc bullit and if I drop pressures much more my tires start folding in high speed corners.

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[cragginshred]

Where is that trail? I ride Squamish a lot with e-bikes, similar terrain. I weigh 165 and I run carbon rims so I do run cush core in the rear. I run 25 rear and 23 front. You don't need that much more pressure than Amish

Near Dodge ridge ski resort in Calif

 

[cragginshred]

What kind of wheels are you running? I use WeAreOne wheels. They have a lifetime replacement and several of my Bros have had to use their warrantee without issue.

DT Swiss I was able to get the rim alone and re lace with a cush core thrown in there!