Otso Waheela C 1x12 Shimano GRX 800

2025 RoadGravel Manufacturer page

Last known price: $4,200

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 12 38t / 10–51t
Gear range: 510%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 157.5–172
MD 169–182
LG 179–192
XL 189–198.1

Components

5 of 12 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

Carbon with Tuning Chip® dropout system Not identified

Drivetrain

3 parts

Bottom bracket

68mm BSA threaded Not identified
Cassette
- Shimano 10–51t
Crankset
- Wolf Tooth 38t

Brakes

2 parts

Brakes

flat mount (160mm) Not identified
Disc rotors

flat mount (160mm) Not identified

Wheels and tires

2 parts

Cockpit and contact points

4 parts

Handlebar

Lithic Aventurine 40cm Not identified
Headset

ZS44/28.6 upper, ZS56 lower Not identified
Saddle
- WTB Silverado
Seatpost

Aluminum 30.9 Not identified

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Geometry diagram unavailable

The drawing needs seat tube angle, which the manufacturer did not publish. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	375	385	395	405
Stackmm	541	555	595	635
Top tube lengthmm	546	560	583	605
Seat tube lengthmm	475	510	540	570
Head tube lengthmm	94	107	149	191
Head tube angle	71°	71.5°	71.5°	71.5°
Chainstay lengthmm	420	420	420	420
Wheelbasemm	1028	1015	1039	1062
Front centermm	617	604	628	651
Bottom bracket dropmm	68	68	68	68
Bottom bracket heightmm	281	281	281	281
Standover heightmm	737	765	798	831
Fork rakemm	47	47	47	47
Trailmm	71	68	68	68
Stack/reach ratio	1.44	1.44	1.51	1.57

Not published by the manufacturer: Seat tube angle, Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Fork material: Carbon
Frame weight: 1.02 kg

2.2 lb
Weight limit: 124.74 kg

275.0 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 38
Largest chainring: 38
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 21.6 in
Highest gear: 110.2 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire clearance: Maximum tire width: 53c
Tire width: 45c
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

3 measures

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

Lowest gear

21.6 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2025
Sample: 1,536 bicycles with this information
Coverage: 76.6% of the class

Highest gear

110.2 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2025
Sample: 1,536 bicycles with this information
Coverage: 76.6% of the class

Shifting

Mechanical

688 of 1,999 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2025
Sample: 1,999 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.3 km/h
Highest gear: 42.2 km/h

Total gear range 510%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 21.6–110.2 gear inches
Class reference (p10–p90): 22.8–126.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2025
Lowest gear: 1536 bicycles with this information, 76.6% of the class
Highest gear: 1536 bicycles with this information, 76.6% 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 2025 builds
Specification	This bicycle Otso Waheela C 1x12 Shimano GRX 800	Otso Waheela C 1x12 Shimano GRX 600	Otso Waheela C 1x12 Shimano GRX Di2	Otso Waheela C - pre-sale, shipping mid-August 1x12 Shimano GRX Di2	Otso Waheela C 1x12 SRAM Apex Mechanical	Otso Waheela C 1x12 SRAM Force XPLR AXS D2
Drivetrain
Smallest chainring	38	38	38	38	Not informed	40
Largest chainring	38	38	38	38	Not informed	40
Smallest sprocket	10	10	10	10	11	10
Largest sprocket	51	51	51	51	50	44
Lowest gear	21.6 in	21.6 in	21.6 in	21.6 in	Not informed	26.4 in
Highest gear	110.2 in	110.2 in	110.2 in	110.2 in	Not informed	116.0 in
Brakes
Brake type	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Mechanical disc	Hydraulic disc
Other specifications
Tire clearance	Maximum tire width: 53c	Maximum tire width: 53c	Maximum tire width: 53c	Maximum tire width: 54c	Maximum tire width: 53c	Maximum tire width: 53c
Tire width	45c	45c	45c	40c	45c	45c

Changes since 2024
Specification	2024 Otso Waheela C 1x12 Shimano GRX 800	This bicycle Otso Waheela C 1x12 Shimano GRX 800
Drivetrain
Smallest chainring	40	38
Largest chainring	40	38
Lowest gear	22.8 in	21.6 in
Highest gear	116.0 in	110.2 in
Other specifications
Tire clearance	Maximum tire width: 54c	Maximum tire width: 53c
Tire width	40c	45c