Otso Fenrir Steel Flat Bar Shimano SLX

2026 RoadGravel Manufacturer page

Last known price: $3,400

Prices shown first for United States
Suspension: Rigid
Wheels: 29″
Frame: Steel
Brakes: Hydraulic disc

Not published by the manufacturer

Sizes and geometry

Components

4 of 10 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Otso custom butted 4130 Chromoly tubing with UDH-compatible dropouts Not identified

Suspension

1 part

Fork

None

Drivetrain

2 parts

Bottom bracket
- Shimano
Crankset
- Shimano Deore FC-M6120-1 12 speeds
FC-M6120

Brakes

2 parts

Brakes
- Shimano Deore
BR-M4100
Disc rotors

Flat mount 160mm native, flat to post mount adapter available for both 160mm and 180mm rotors Not identified

Wheels and tires

1 part

Rims
- DT Swiss

Cockpit and contact points

4 parts

Handlebar

Lithic MTB, 31.8 x 780mm, 20mm rise; upgrade options Not identified
Headset

ZS44/28.6 upper, EC44/40.0 lower Not identified
Seatpost

Aluminum 31.6 x 400mm, 8mm offset Not identified
Stem

Aluminum - 50mm +/- 7 deg Not identified

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Steel
Frame weight: 3.05 kg

6.7 lb
Weight limit: 124.74 kg

275.0 lb

Suspension

Suspension configuration: Rigid

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Derailleur hanger: UDH
Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire clearance: Maximum tire width: 2.6″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

1 measure

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Shifting

Mechanical

706 of 1,977 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2026
Sample: 1,977 bicycles with this information
Coverage: 99.6% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2026 builds

Differences across 2026 builds
Specification	This bicycle Otso Fenrir Steel Flat Bar Shimano SLX	Otso Fenrir Stainless Drop Bar 1x12 Shimano GRX 600	Otso Fenrir Stainless Drop Bar 1x12 Shimano GRX 800	Otso Fenrir Stainless Drop Bar 1x12 SRAM Apex Mechanical	Otso Fenrir Stainless Drop Bar 1x12 SRAM Force GX AXS Mullet	Otso Fenrir Stainless Drop Bar 1x12 SRAM Rival AXS Mullet
Frame
Frame weight	3.05 kg	2.58 kg	2.58 kg	2.58 kg	2.58 kg	2.58 kg
Fork material	Not informed	Carbon	Carbon	Carbon	Carbon	Carbon
Drivetrain
Front chainrings	Not informed	1	1	1	1	1
Rear sprockets	Not informed	12	12	12	12	12
Smallest sprocket	Not informed	10	10	11	10	11
Largest sprocket	Not informed	51	51	50	52	50
Smallest chainring	Not informed	Not informed	Not informed	30	30	30
Largest chainring	Not informed	Not informed	Not informed	30	30	30
Lowest gear	Not informed	Not informed	Not informed	17.4 in	16.7 in	17.4 in
Highest gear	Not informed	Not informed	Not informed	79.1 in	87.0 in	79.1 in
Cockpit
Derailleur hanger	UDH	Not informed	Not informed	Not informed	Not informed	Not informed
Other specifications
Tire clearance	Maximum tire width: 2.6″	Maximum tire width: 2.3″	Maximum tire width: 2.3″	Maximum tire width: 2.3″	Maximum tire width: 2.3″	Maximum tire width: 2.3″
Tire width	Not informed	2.4″	2.4″	2.4″	2.4″	2.4″