41-Thermal® forks quickly established a reputation for strength and quality when we originally introduced them in 1999, and they have since gone on to change the standards that all forks are judged by. Our new R-Series forks continue this tradition.
- Fully redesigned.
- Laboratory tested and team proven.
- New, custom, seamless, tapered, butted and specially formed leg tube shaping for improved grind and guard clearance.
- All-new steerer tube design improves fatigue strength and includes a built-in, integrated, lower headset seat race.
- New, optimized, 4mm dropout shape for grind and peg clearance.
- Updated 7075-T6 pre-load bolt, US Pat. No. 7,591,474
- Proven 41-Thermal® processed 4130 chromoly
- 25mm steep offset
- 3/8” axle slots only
- Starting at 1lb 15.2oz (885 grams)