Sram Tire Pressure Calculator
Calculate the optimal tire pressure for your mountain bike based on rider weight, tire width, and terrain type. Uses SRAM's recommended pressure guidelines for tubeless setups.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the SRAM Tire Pressure Calculator
- Enter Rider Weight (in kg, between 30–200). Use metric only.
- Select Tire Width (in inches, from 2.0 to 2.6).
- Choose Terrain Type: Smooth/Hardpack, Mixed/Trail, or Rough/Rocky.
- Choose Bike Type: Cross-Country, Trail/All-Mountain, or Enduro/Downhill.
- Click "Calculate Pressure".
Result: Recommended tire pressure in psi, with a breakdown of adjustments (weight, width, terrain).
Tip: Adjustments are based on your inputs—wider tires or rougher terrain increase pressure, while smooth terrain decreases it.
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Frequently Asked Questions
It's a tool that estimates recommended tire pressure for mountain bikes based on rider weight, tire width, terrain, and bike type, following SRAM's guidelines for tubeless setups.
The calculator uses a base pressure from rider weight, then adjusts for tire width and terrain. The formula is: Base = weight * factor (0.12 for XC, 0.14 for trail, 0.16 for enduro), then add (width - 2.3)*5, and add terrain offset (-2 smooth, 0 mixed, +3 rough).
Proper tire pressure improves traction, reduces rolling resistance, prevents pinch flats, and provides better control and comfort on different terrains.
