The Trail-Ready Setup Kit
The MountRides kit for setting a mountain bike to your weight, and for fitting the parts that have to fit, by measurement and by the maker's numbers
MountRides has six free calculators, and the trouble on a real bike is the space between them. The Suspension Sag Calculator used to print a starting fork pressure of your weight in psi: 165 psi for a 165 lb rider, where FOX's 2025 manual starts that rider on a 36 FLOAT at 82 psi and lists 120 psi as the fork's maximum. We took the number out. The Gear Ratio and Chain Length calculators never meet, though every part change needs both, and the Spoke Length Calculator never says which input error costs the most. The Trail-Ready Setup Kit puts the tools in the order a rider meets them. Part 1 weighs you in riding kit (15 lb of kit moves the tires 1.5 psi at each end and the fork chart a full row), sets sag from the maker's chart and the o-ring at both ends, and brackets tire pressure under the lower of the tire and rim maximum. Part 2 sizes the chain to the big-big (430 mm, 32/50: 112 links), finds the cheapest easier gear (a 30T chainring gives 17.6 gear inches against 18.0 for a 52T cassette, one part, and the chain still fits), ranks the spoke inputs by the error each causes (an outer diameter read as the ERD adds 9.9 mm), and ends with a pre-ride check. Every worked figure is an example computed from the site's own calculators, and every rule of thumb is named as one. Torque values, suspension pressures and wheel builds stay with each component maker's specifications and a qualified mechanic. Included: 24 printable pages with seven steps, a setup card, a chain and gearing worksheet, a spoke order sheet, a pre-ride check card, reference tables and a quickstart, plus a personalised sheet worked on the numbers you entered in the calculator you came from.
Look inside
Two full pages from the kit, exactly as printed. Click either to read it at full size before you decide.
What is in it
- Weigh once, in riding kit: one number for the sag and tire tools and the fork maker's chart
- Sag set by measurement at both ends, starting from the maker's chart and never past its maximum
- Tire pressure bracketed on one known loop, under the lower of the tire and rim maximum
- A chain sized to the big-big before you cut, and checked through the travel on a full-suspension bike
- The cheapest way to an easier gear, in gear inches, each change priced with the chain it needs
- Spokes ordered from checked inputs, with the errors that cost a millimeter and the ones that cost ten
- The one-change rule and a pre-ride check, with the faults that mean take it to a mechanic
- A setup card, a chain and gearing worksheet, a spoke order sheet and a pre-ride check card
- Reference tables: sag by travel and stroke, chain links by chainstay, spokes by cross pattern, wheel diameters
- A personalised sheet: your sag in millimeters, tire bracket, chain links, gearing options and spoke order
- ✓ 24 printable pages
- ✓ 10 sections, worksheets and templates
- ✓ A second PDF worked out from the numbers you enter
- ✓ No account needed, just an email address
- ✓ Instant download; link valid 7 days
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The kit picks up where the free Suspension Sag Calculatorleaves off. The calculator gives the millimeters of sag to measure; the kit sets it beside the tire pressure, chain length, gear ratio, wheel size and spoke length tools, in the order a rider meets them: one kitted weight for every tool, sag set from the fork maker’s chart and measured, tires bracketed under the lower maximum, a chain sized to the big-big, the cheapest easier gear priced with its chain, spokes ordered from checked inputs, and the check before every ride. Torque values, pressures and wheel builds stay with the component maker’s specifications and a qualified mechanic. A method, not a service manual or a recommendation of any brand.