Tubeless Tire Pressure Charts

Having the right tire pressure is a critical ingredient to having your wheels perform at their best. If you change to wider rims or wider tires, your tire pressure must be lowered. The below charts take this into account and help guide you to an appropriate starting point, and then you can adjust up or down slightly to suit your needs.

Rider weight, experience level, terrain, riding style, and the current trail conditions will all affect the tire pressure. Once you find your best all-around pressure, you’ll be able to lower it slightly for wet conditions, or increase it slightly for fast hard packed conditions like at a bike park for example.

We’ve divided our rims into three categories based on their most common use.

1. Smooth Roads

2. Gravel/Rough Roads

3. Mountain Biking/Plus/Fat

SMOOTH ROADS

RIM WIDTH TIRE SIZE RIDER WEIGHT	R (25, 35, 45, 55, 65, 88) / AR (35, 36, 45, 46) 17.9mm-21mm			AR56 23mm
RIM WIDTH TIRE SIZE RIDER WEIGHT	23mm	25mm	28mm	28-30mm	32-35mm	35-38mm	38-42mm
100lbs/45kg	61	52	44	39	35	33	29
110lbs/50kg	66	55	48	41	37	35	32
120lbs/54kg	70	59	51	44	39	38	35
130lbs/59kg	75	64	54	46	42	40	36
140lbs/64kg	80	69	58	50	44	42	38
150lbs/68kg	86	72	61	53	47	44	42
160lbs/73kg	89	75	64	55	50	47	44
170lbs/77kg	93	80	67	57	52	49	45
180lbs/82kg	97	82	70	61	54	52	47
190lbs/86kg	102	85	73	62	56	54	49
200lbs/91kg	104	89	75	64	58	55	50
210lbs/95kg	107	90	77	67	59	56	52
220lbs/100kg	109	91	78	68	60	58	53
230lbs/104kg	111	94	80	68	61	59	54
240lbs/109kg	112	95	81	69	62	60	55
250lbs/113kg	113	95	81	69	62	60	55
Maximum Pressure*	R-rims: 120psi AR-rims: 110psi (75psi for hookless)			AR-rims: 110psi (75psi for hookless)

The maximum inflation pressure is measured with 25C tires (tubeless setup).

GRAVEL/ROUGH ROADS

RIM WIDTH TIRE SIZE RIDER WEIGHT	AR (35, 36, 45, 46) 21mm		AR (24, 28, 36 (650B), 56) 22mm-23mm					WR (35, 38, 45, 50, 65, 35 (650B)) 25mm
RIM WIDTH TIRE SIZE RIDER WEIGHT	28-30mm	32-35mm	28-30mm	32-35mm	35-38mm	38-42mm	42-45mm	28-30mm	32-35mm	38-42mm	42-45mm	47-50mm
100 lbs./ 45Kg	31	28	29	26	25	23	20	29	26	22	19	15
110 lbs./ 50Kg	33	30	32	28	27	25	22	31	27	24	20	16
120 lbs./ 54Kg	36	32	34	30	29	27	24	33	30	26	22	17
130 lbs./ 59Kg	38	34	36	33	31	29	25	34	31	27	24	18
140 lbs./ 64Kg	39	36	37	35	33	30	27	36	33	29	26	19
150 lbs./ 64Kg	42	38	40	37	35	32	28	39	35	30	27	20
160 lbs./ 73Kg	44	40	42	38	37	34	30	41	37	32	28	21
170 lbs./ 77Kg	46	42	44	40	38	35	31	43	38	34	29	22
180 lbs./ 82Kg	49	44	46	42	40	37	33	45	40	35	31	23
190 lbs./ 86Kg	51	46	47	43	41	38	34	46	42	36	32	24
200 lbs./ 91 Kg	52	47	49	45	43	39	35	48	43	37	33	24
210 lbs./ 91Kg	54	48	50	46	44	40	35	49	44	38	34	25
220 lbs./ 100Kg	55	49	51	47	44	40	35	50	45	39	34	26
230 lbs./ 104Kg	55	49	52	47	45	41	36	51	46	40	35	26
240 lbs./ 109 Kg	55	50	53	47	45	41	36	51	46	40	35	26
250 lbs./ 113Kg	56	50	53	47	45	41	36	52	46	41	36	26
Max Pressure*	AR-rims: 110psi (75psi for hookless)		AR28/AR36 650b: 110psi AR24: 50psi (hookless-only)					WR-rims: 80psi (55psi for hookless)

The maximum inflation pressure for AR-rims (except AR24) is measured with 25mm tubeless tires mounted. The inflation limit of WR-rims is measured with 28mm tubeless setup.

If the recommended tire pressure is near or over the max pressure, it is suggested to move up in tire volume.

MTB/PLUS/FAT

RIM WIDTH TIRE SIZE RIDER WEIGHT		29C06, 650BC09, 26C02, 29C19, AM724, XC925, XC725 22mm-25mm				26C03, AM927, AM727, AM728, EM928, 29C07, 650BC05, AM930, AM730 27mm-30mm			26C05, 650BC13, 29C14, EN932, EN732, AM933, AM733, AM735, AM935 31.6mm-35mm			26C06, AM740, 650BC14, 29C15 40mm-45mm		RSNOW03 60mm	RSNOW05 70mm	FAT680, FS680 80mm
RIM WIDTH TIRE SIZE RIDER WEIGHT		2	2.1	2.25	2.4	2.35	2.4	2.5	2.5	2.6	2.8	2.8	3	3.8	4.5	4.5	5
120 lbs. / 54Kg	F R	18-21 19-22	17-20 18-21	16-19 17-20	15-18 16-19	16-19 16-20	15-19 16-19	15-18 15-19	14-18 15-19	14-18 15-19	13-17 14-18	12-13 13-15	11-12 13-14	5 5	3.5 3.5	3 3	2 2
120-140 lbs. / 54-64 Kg	F R	19-22 19-23	18-21 18-22	17-20 17-21	16-19 16-20	16-20 17-20	16-19 17-20	15-19 16-19	15-19 16-20	14-18 15-19	14-17 14-18	12-13 14-15	11-12 13-14	6 6	4.5 4.5	4 4	3 3
140-160 lbs./ 64-73 Kg	F R	19-23 20-24	18-22 19-23	17-21 18-22	16-20 17-21	17-20 18-21	17-20 17-21	16-19 17-20	16-19 17-21	15-19 16-20	14-18 15-19	13-14 15-16	12-13 14-15	7 7	5.5 5.5	5 5	4 4
160-180 lbs./ 73-82 Kg	F R	20-24 21-25	19-23 20-24	18-22 19-23	17-21 18-22	18-22 19-23	18-21 18-22	17-21 18-21	16-21 17-22	16-20 17-21	15-19 16-20	13-14 15-17	13-14 15-16	8 8	6.5 6.5	6 6	5 5
180-200 lbs./ 82-91 Kg	F R	22-26 22-27	21-25 21-26	19-24 20-25	18-22 19-23	19-23 20-24	19-23 19-24	18-22 19-23	17-22 19-24	17-21 18-23	17-20 18-22	14-15 16-18	13-15 16-17	9 9	7.5 7.5	7 7	6 6
200-220 lbs./ 91-100 Kg	F R	23-28 24-29	22-27 23-28	21-25 22-26	20-24 21-25	20-25 21-26	20-24 21-26	19-23 20-24	19-24 20-25	18-23 19-24	18-22 19-23	15-16 18-19	14-16 17-18	10 10	8.5 8.5	8 7.5	7 7
220-240 lbs./ 100-108 Kg	F R	25-30 26-31	24-29 25-30	22-27 23-28	21-26 22-27	22-27 23-28	22-26 22-27	21-25 22-26	21-26 22-27	20-25 21-26	19-23 20-25	16-18 19-20	16-17 18-19	11 11	9.5 9.5	9 9	8 8
Max Pressure		MTB rims: 40psi										Plus rims: 35psi		Fat rims: 25psi

Take These Factors Into Account

1. All the calculations of pressures are based on tubeless installation, given rider weight, average bike weight, specific inner rim width, and standard tire casing. Enduro/DH casing tires can run slightly lower pressure.

2. The tire sizes and rider weights listed are based on our customer profiles and common riding habits. If the charts don’t apply to you, please leave a comment or contact us for psi recommendations.

3. Never over-inflate. If the tire does not seat at a modest pressure, just deflate it and troubleshoot the problems. DO NOT exceed the MAX pressures we set.

4. If the recommended pressure is out of tolerance (minimum or maximum) with the tire manufacturer, then you may need to change the tire size to better suit the rim.

5. Check your tire pressure before you ride as they lose air over time.

More About Tire Choice & Mounting

Tire Size Recommendations

Road Tire Actual Width Charts

MTB Tires: Claimed vs Actual Weight

Troubleshoot Tubeless Air Leak

Please leave a comment or contact us (sales@lightbicycle.com) if you have any questions about tubeless installation.

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September 8th, 2020 | Light Bicycle

COMMENTS

Mike 2021/12/13

How can I determine the model of my carbon rim? Thanks MIKE

LightBicycle 2021/12/18

Hi Mike, You can leave the rim model aside and focus on the internal width of your rims. If you don't know, just simply remove the tire and measure it by hand. Some bike rim manufacturers don't have it marked on the rims. Note, the chart is easier to browse on PC. Thanks, Lightbicycle

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