Heavy guy, what tire pressures?

[Cavi]

so to the other riders out there that are between 110 and 120kg, what tire pressures do you run in tubeless tires? I am running 30lbs, but I would like to go to 20lbs....

 

[blancysteve]

I'm not far off geared up. I run 26 front and rear on my cube hybrid stereo

 

[Astom22]

I run 20psi on the front, but 30psi in the rear. Depending on what I'm riding, I adjust rear a little softer or firmer.

I'm 240+lbs kitted up (not sure what that is in kg's).

 

[Gary]

if a guy your weight wants to run 20psi in a rear tyre he's going to need to either run super thick tyre casings, large volume tyres or ride absolutely nothing rough and never corner aggressively.

Tip: all the answers in this thread are utterly worthless without the user stating the volume and casing of their tyres and along with how they ride and on what sort of terrain.

 

[LeeBoy]

I weigh 155 pounds and run 19 rear and 18 front tubeless 2.35 Maxxis Forkaster Exo TRs on my Levo Sl which weighs 33 1/2 #s, 15 1/4 kilos.

 

[iXi]

27 & 30 maxxis assegai 2.5 front, maxxis forekaster 2.6 rear 110kg.

 

[Rusty]

so to the other riders out there that are between 110 and 120kg, what tire pressures do you run in tubeless tires? I am running 30lbs, but I would like to go to 20lbs....

I am around your weight so maybe can add some input. @Gary is 100% correct though - tire volume and casing is the key.
Personally, when I was racing XC and running 2.0-2.1 tires I was around the 30psi range. As I went up in tire volume and started trail riding on more aggressive terrain I dropped pressure to get a sweet spot for me. The only time I went real low was when I was on 27.5 wheels with 2.8 rubber and went as low as 20-22 range searching for consistency. Running 29 x 2.5 Magic Mary front it is 25psi and Hans Dampf out back with 26psi. If I go much lower I get too much squirm under cornering.

I started high and just dropped 1psi until it felt loose then went back up 1.

 

[wepn]

if a guy your weight wants to run 20psi in a rear tyre he's going to need to either run super thick tyre casings, large volume tyres or ride absolutely nothing rough and never corner aggressively.

Tip: all the answers in this thread are utterly worthless without the user stating the volume and casing of their tyres and along with how they ride and on what sort of terrain.

I notice Gary hasn't stated the volume and casing of his tyres and along with how he rides and on what sort of terrain

Neither will I because I'm a middleweight so not much point but yes it sounds like you need DH casing also Cushcore insert on the rear.

 

[Gary]

I notice Gary hasn't stated the volume and casing of his tyres and along with how he rides and on what sort of terrain

As a 200lb rider who rides low grip steep highly technical DH/Enduro trails with poppy style, flair and controlled sketchiness on the lowest grip compound single ply 2.3 rear tyre Maxxis produce while using 40psi tubeless with no insert isn't particularly relevant to the OP's request. But no less so than some of the other robotic replies he's received.
Eh? ?

 

[Clubby]

98kg without my riding pack. Front 25psi Maxxis exo + , rear 28psi maxxis doubledown, both 2.5”. Wouldn’t want to go any lower than that. Heavier weight of bike makes lifting rear quickly more difficult. Quite a few times I’ve been glad of heavier casing on the rear.

Cavi, what you looking to achieve by going down in pressure? More grip or compliance? At your weight those pressures look pretty normal to be honest.

 

[Cavi]

don't know what I want to achieve, I just hear soo many riders riding at 20 or below, and I am sure the larger patch would mean more grip, but with my weight I am sure sub 20 would not work. since I do not feel like breaking beads from running too low I figured I would ask what others like me are running

 

[BrentD]

I always used to like the Stan's No Tubes recommendation to take your body weight in pounds and divide this by seven then subtract one psi front and add two psi rear when I was running 23 IW rims with 2.3 tyres. Now that most people are running something around 30 IW rims this is too high. At 75kg riding weight and 2.6 Exo+ tyres on a 28 IW rims with Cushcore I'm down to 16 psi F and 19 PSI rear for general trail riding, up that by 2 psi both ends for high speed terrain.

Here's a quick and dirty table I made using the Stan's formula.

Rider Weight (kg)	70	75	80	85	90	95	100	105	110
Rider Weight (lb)	154	165	176	187	198	209	220	231	243
Front Pressure	21	23	24	26	27	29	30	32	34
Rear Pressure	24	26	27	29	30	32	33	35	37

 

[wepn]

Tip: all the answers in this thread are utterly worthless without the user stating the volume and casing of their tyres and along with how they ride and on what sort of terrain.

I know Gary wasn't referring to the question because it's a good question but he's certainly right about volume, what tires and rim width are you wanting to go sub 20 psi with? Cushcore may make 20-25 psi a more effective target range & more likely Cushcore Plus for tire widths from 2.6″ to 3.0″ & inner rim widths from 32mm to 45mm.

 

[JoeBlow]

Although I can see Gary's point, he is right, I would go with the chart shown above. I think it's a good starting point and coincidentally, I might add, reflects my set up for my weight. Unless you are really experienced and/or riding in World Cup events I doubt that you would be able to tell the difference between 30PSI and 29 PSI. I certainly can't although going from 30 to 26 felt better for me.

Al