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Tire and pressure guides
Starting pressures by tire width and rider weight, hookless limits, sealant and tubes. The pressure calculator uses the same method as the tables.
8 guides and tools
ToolRoadGravelTires & pressure
Tire pressure calculator
Front and rear pressure in psi and bar from your weight, tire width and riding surface. Road and gravel, tubeless or tubes.
GravelTires & pressure
Best gravel tires by use: what the 2026 lab tests say
Gravel tires for fast hardpack, mixed routes and mud, from GRAN FONDO's 2026 lab test of 32 tires: its rolling resistance and puncture scores, US prices, and the Rambler casing question.
RoadTires & pressure
Are TPU inner tubes worth it?
TPU tubes against butyl, latex and tubeless: what BRR's drum test and a real-road roll-down show, plus repairs, rim brakes and hookless rims.
RoadGravelTires & pressure
How often should you top up tubeless sealant?
How often to check tubeless sealant on road and gravel, how much to use by tire width, and what shortens its life.
RoadGravelTires & pressure
Does rim width change tire width? Yes, and your pressure should follow
How much a wider rim widens your tire (the 0.4mm rule), what BRR measured, and how much it changes the pressure you should run.
GravelTires & pressure
Gravel tire pressure for 40mm tires, and what changes at 38 or 45mm
Starting pressures for 38 to 45mm gravel tires by rider weight, the front/rear split, rim width effects and how far to go lower off-road.
RoadTires & pressure
Road tire pressure for 28, 30 and 32mm tires
Starting pressures for 28, 30 and 32mm road tires by rider weight, how rough roads and rim width change them, and where hookless limits get in the way.
GravelTires & pressureFrames & standards
Gravel bike tire clearance chart: what the brands actually state
Maximum tire width for popular gravel frames, only as the brands state it, with a note on whether each figure is a measured width or a stated max.
RoadTires & pressure
Hookless-compatible road tires: every approved tire in one list
Which road tires the brands approve for hookless (TSS) rims, in which widths and at what maximum pressure. Continental, Pirelli, Vittoria, Hutchinson, Schwalbe, Giant and Zipp in one place.