Otso Warakin SRAM Apex Mechanical

2026 RoadGravel Manufacturer page

Last known price: $3,100

Prices shown first for United States
Suspension: Rigid
Wheels: 650b
Frame: Steel
Brakes: Mechanical disc

Rider height by size (cm)

Size guide

49cm 149.9–159
52cm 156–164
54cm 161–174
56cm 171–184
58cm 181–189
60m 187–195.6

Components

8 parts

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 Tuning Chip™️ dropout system Not identified

Drivetrain

1 part

Bottom bracket

68mm BSA threaded Not identified

Brakes

2 parts

Brakes

Flat mount, 74mm post mount available(160mm) Not identified
Disc rotors

Flat mount, 74mm post mount available(160mm) Not identified

Wheels and tires

1 part

Rims

700c - recommended for sizes 52cm-60cm OR 650b - recommended for size 49cm Not identified

Cockpit and contact points

3 parts

Handlebar

Lithic Aventurine 40cm Not identified
Headset

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

Aluminum, 27.2 x 350mm, black Not identified

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 54cm

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 6 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	368	378	381	383	384	392
Stackmm	532	549	570	596	622	641
Top tube lengthmm	510	530	545	565	580	600
Seat tube lengthmm	400	505	530	550	570	590
Head tube lengthmm	87	95	115	140	165	185
Head tube angle	70°	70.5°	71°	71.5°	72°	72°
Chainstay lengthmm	410	420	420	420	420	420
Wheelbasemm	1000	1017	1023	1028	1032	1046
Front centermm	597	606	612	617	621	635
Bottom bracket dropmm	58	68	68	68	68	68
Standover heightmm	677	760	780	800	820	840
Fork rakemm	47	47	47	47	47	47
Trailmm	70	71	70	67.5	65	65
Stack/reach ratio	1.45	1.45	1.50	1.56	1.62	1.64

Not published by the manufacturer: Seat tube angle, Bottom bracket height, 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: Steel
Frame weight: 2.51 kg

5.5 lb
Weight limit: 124.74 kg

275.0 lb

Suspension

Suspension configuration: Rigid

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire clearance: Maximum tire width: 50c; Additional specification: Wheel kind: 27.5
Wheel material: Aluminum
Wheel size: 650b

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 1,980 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2026
Sample: 1,980 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 Warakin SRAM Apex Mechanical	Otso Warakin - Builder 1x12 Shimano GRX 600	Otso Warakin - Builder 1x12 Shimano GRX 800	Otso Warakin - Builder 1x12 Shimano GRX Di2	Otso Warakin - Builder 1x12 SRAM Force XPLR AXS D2	Otso Warakin - Builder 1x12 SRAM Rival AXS Mullet
Drivetrain
Front chainrings	Not informed	1	1	1	1	1
Smallest chainring	Not informed	38	38	38	40	40
Largest chainring	Not informed	38	38	38	40	40
Rear sprockets	Not informed	12	12	12	12	12
Smallest sprocket	Not informed	10	10	10	10	11
Largest sprocket	Not informed	51	51	51	44	50
Lowest gear	Not informed	20.5 in	20.5 in	20.5 in	25.0 in	23.2 in
Highest gear	Not informed	104.5 in	104.5 in	104.5 in	110.0 in	105.5 in
Brakes
Brake type	Mechanical disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Wheels
Wheel configuration	Same size	Same size	Same size	Same size	Same size	Different sizes
Other specifications
Wheel size	650b	650b	650b	650b	650b	29″ / 27.5″
Tire width	Not informed	45c	45c	45c	45c	45c