Otso Cycles Fenrir Stainless GRX 11sp
Availability: | In stock |
Fenrir Stainless Drop Bar
GRX 800 1x11
MSRP: $3,900, SALE: $3,300!
Bikepacking your way.
The Fenrir Stainless is a ride-anywhere bike for bikepacking races and afternoon adventures alike. It can be built with drop bars or with MTB bars and both selections are available as stock build options. A tire clearance of 29" x 2.6" or 27.5" x 2.8" keeps the Fenrir rolling on rough terrain, while extra frame and fork braze-ons are ready to carry gear for days or weeks on the trail. Like most Otso bikes, the Fenrir Stainless has adjustable geometry via the patented Tuning Chip rear dropout system that makes the bike as adaptable as its rider.
DROP BAR | FLAT BAR | |
Frame | Custom butted austenitic stainless steel frame | Custom butted austenitic stainless steel frame |
Fork | Carbon Lithic Mountain Fork, 15mm thru axle | Carbon Lithic Mountain Fork, 15mm thru axle |
Headset | Wolf Tooth Performance Headset | Wolf Tooth Performance Headset |
Rear derailleur | Shimano GRX 822 1x, 12-speed | Shimano SLX M7100, 12-speed |
Front derailleur | N/A | N/A |
Shifters | Shimano GRX 600 mechanical, 12-speed | Shimano SLX M7100, 12-speed |
Cassette | Shimano SLX M7100, 11-51T, 12-speed | Shimano SLX M7100, 10-51T, 12-speed |
Brakes | Shimano RX400 Hydraulic | Shimano Deore M4100 |
Cranks | Race Face Aeffect, 34T Chainring | Race Face Aeffect, 34T Chainring |
Handlebar | Lithic Corundum aluminum compact drop with 16° flare | Aluminum, 31.8mm x 780mm, 20mm rise |
Tape / Grips | Anti-Slip Gel Bar Tape | Wolf Tooth Grips |
Wheels | DT Swiss M1900 29" | DT Swiss M1900 29" |
Tires | Schwalbe Racing Ralph 29x2.35 Super Ground | Schwalbe Racing Ralph 29x2.35 Super Ground |
Frame Sizes | XS, S, M, L, XL | XS, S, M, L, XL |
Geometry

XS | S | M | L | XL | |
Recommended rider height | 4'10"-5'4" | 5'3"-5'7" | 5'7"-5'11" | 5'11"-6'3" | 6'3"-6'6" |
Effective top tube | 547mm | 565mm | 583mm | 600mm | 618mm |
Nominal head tube angle | 68° | 68° | 68° | 68° | 68° |
Tuning Chip-induced head/seat tube angle change from middle position | ±0.25° | ±0.25° | ±0.25° | ±0.25° | ±0.25° |
Head tube length | 90mm | 100mm | 120mm | 140mm | 160mm |
Nominal seat tube angle | 75° | 75° | 75° | 75° | 75° |
Seat tube length | 360mm | 400mm | 450mm | 490mm | 530mm |
Bottom bracket drop | 68-72mm | 68-72mm | 68-72mm | 68-72mm | 68-72mm |
Chainstay length | 430-450mm | 430-450mm | 430-450mm | 430-450mm | 430-450mm |
Wheelbase | 1090-1110mm | 1110-1120mm | 1130-1150mm | 1150-1170mm | 1170-1190mm |
Trail | 88mm | 88mm | 88mm | 88mm | 88mm |
Fork offset | 51mm | 51mm | 51mm | 51mm | 51mm |
Rigid fork axle to crown length | 495mm | 495mm | 495mm | 495mm | 495mm |
Stack | 595mm | 605mm | 623mm | 642mm | 660mm |
Reach | 387mm | 403mm | 416mm | 428mm | 441mm |
Standover | 754mm | 777mm | 810mm | 838mm | 866mm |