Overview
Configure your Fenrir Steel to your bikepacking style. If you prefer MTB bars, do it. If you prefer drop bars, build it that way instead. This bike can be configured with the components that you need to ride with comfort and confidence for multi-day tours. This is a bike with a superior ride quality that truly shines when fully loaded. So go ahead and use every last mount for cargo to keep you going for extra time on the trail.
| Size | S | M | L | XL |
| Recommended rider height | 5’3″-5’7″ | 5’7″-5’11” | 5’11”-6’3″ | 6’3″-6’6″ |
| Inseam | 29.5″-31″ | 31″-32″ | 32″-33″ | 33.5″-35″ |
| Stack | 605 | 623 | 642 | 660 |
| Reach | 403 | 416 | 428 | 441 |
| Effective top tube | 565 | 583 | 600 | 618 |
| Head tube angle | 68° | 68° | 68° | 68° |
| Head tube length | 100 | 120 | 140 | 160 |
| Seat tube angle | 75° | 75° | 75° | 75° |
| Seat tube length | 400 | 450 | 490 | 530 |
| Bottom bracket drop | 68 | 68 | 68 | 68 |
| Rear center | 440 | 440 | 440 | 440 |
| Wheelbase | 1110 | 1130 | 1150 | 1170 |
| Trail | 95 | 95 | 95 | 95 |
| Fork offset | 51 | 51 | 51 | 51 |
| Rigid fork axle to crown length | 495 | 495 | 495 | 495 |
Features
Custom-Butted Stainless Steel Frame: Provides a smooth, durable ride with excellent corrosion resistance.
Adjustable Geometry: The Tuning Chip™ system allows customization of the wheelbase, bottom bracket height, and head tube angle for optimized handling on various terrains.
Wide Tire Clearance: Fits tires up to 29” x 2.6” or 27.5” x 2.8”, making it suitable for gravel and rugged trails.
Multiple Mounts for Gear: Equipped with numerous mounts on the frame and fork for carrying racks, fenders, and gear, ideal for long-distance touring and bikepacking.
Drop Bar Configuration: Designed for a capable and confident gravel bike setup, perfect for handling mixed terrain with ease.
Specs
Most components can be customized at time of order, contact us!
| DROP BAR | |
| Frame | Custom butted austenitic stainless steel frame |
| Fork | Carbon Lithic Mountain Fork, 15mm thru axle |
| Headset | Wolf Tooth Performance Headset |
| Rear derailleur | Shimano GRX 822 1x, 12-speed |
| Front derailleur | N/A |
| Shifters | Shimano GRX 600 mechanical, 12-speed |
| Cassette | Shimano SLX M7100, 11-51T, 12-speed |
| Brakes | Shimano RX400 Hydraulic |
| Cranks | Race Face Aeffect, 34T Chainring |
| Handlebar | Lithic Corundum aluminum compact drop with 16° flare |
| Tape / Grips | Anti-Slip Gel Bar Tape |
| Wheels | DT Swiss M1900 29″ |
| Tires | Schwalbe Racing Ralph 29×2.35 Super Ground |
Warranty
- All Otso frames are warranted against defects in materials and workmanship for 5 years from the date of retail purchase.
- This warranty applies to the original owner only and is not transferable.
- Please keep your sales receipt or order number for any warranty claims to ensure a quick resolution.
What’s Not Covered:
- Damage from improper assembly, maintenance, or user/assembler inexperience.
- Modifications, neglect, misuse, competition, commercial use, or accidents.
- Installation of incompatible components, parts, or accessories.
- Normal wear and tear, or damage to paint, surface finish, or aesthetics.
- Compatibility of original components with a replacement frame is not guaranteed.
- Costs for labor, parts removal, refitting, or re-adjustment, including wheel rebuilds.
Claim Process:
- Warranty claims are limited to the repair or replacement of the defective frame, at Otso’s discretion.
- This warranty does not cover incidental or consequential damages.
Legal Information:
- This warranty gives you specific legal rights, which may vary based on location. It does not affect your statutory rights.










