
R-Core X Motocross Race Pants
The R-Core X is 100%’s most advanced riding pant — their downhill race pant, lighter than the Airmatic and cut for race days.Features 4-way stretch main fabric in a lightweight polyester/spandex blend DWR water-resistant coating sheds dirt and water Downhill-race fit that clears knee guards and braces Articulated, tapered leg Specifications Line: R-Core — 100%’s downhill line Sizes: 30, 34, 36 (waist in inches) Colour: black 100% sells the R-Core X as a downhill mountain-bike pant.
Every Panel Has a Job.
The R-Core X is 100%’s most advanced riding pant — their downhill race pant, lighter than the Airmatic and cut for race days.Features 4-way stretch main fabric in a lightweight polyester/spandex blend DWR water-resistant coating sheds dirt and water Downhill-race fit that clears knee guards and braces Articulated, tapered leg Specifications Line: R-Core — 100%’s downhill line Sizes: 30, 34, 36 (waist in inches) Colour: black 100% sells the R-Core X as a downhill mountain-bike pant.
4-way stretch main fabric in a lightweight polyester/spandex blend
DWR water-resistant coating sheds dirt and water
Downhill-race fit that clears knee guards and braces
Articulated, tapered leg

R-Core X Motocross Race Pants.
Made to Race.
The R-Core X is 100%’s most advanced riding pant — their downhill race pant, lighter than the Airmatic and cut for race days.
Specifications
- Line: R-Core — 100%’s downhill line
- Sizes: 30, 34, 36 (waist in inches)
- Colour: black
100% sells the R-Core X as a downhill mountain-bike pant. Ships from San Francisco.
Dialed In, Not Squeezed In.
MX pants are sized by waist in inches. Measure at your natural waist, over the base layers you ride in.
| Size | Waist | Waist (cm) |
|---|---|---|
| 30 | 30″ | 76 cm |
| 34 | 34″ | 86 cm |
| 36 — selected | 36″ | 91 cm |
100%
The 100% logo comes from the question every racer gets asked: how much effort do you give? Worn by motocross legends in the late '70s and reborn in San Diego as a premium racing brand, 100% now builds complete race kits — the most iconic goggles in motocross, plus gloves, jerseys, and the pants on this page.
Shop all 100% ›Come by the shop.
4051 Judah St, Outer Sunset, San Francisco. Bring your knee braces — try the pants over them and walk out race-ready.











