Spot Mayhem 140 4-Star Transmission

Name: Spot Mayhem 140 4-Star Transmission
Brand: Spot

2025 MountainTrail Manufacturer page

Last known price: $6,499

Prices shown first for United States
Travel: 160 / 140 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 32t / 10–52t
Gear range: 520%
Weight: 14.42 kg 31.8 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

17 of 17 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.

Suspension

2 parts

Drivetrain

6 parts

Brakes

1 part

Brakes
- SRAM DB6

Wheels and tires

2 parts

Cockpit and contact points

6 parts

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 445mm

Stack 619mm

Wheelbase 1200mm

Head angle 65.2°

Seat angle 76.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	415	445	475	505
Stackmm	605	619	633	642
Top tube lengthmm	560	594	621	647
Seat tube lengthmm	356	407	457	495
Head tube lengthmm	90	105	120	130
Head tube angle	65.2°	65.2°	65.2°	65.2°
Seat tube angle	76.5°	76.5°	77°	77.5°
Chainstay lengthmm	435	435	435	435
Wheelbasemm	1163	1200	1236	1270
Front centermm	729	765	801	835
Bottom bracket dropmm	31	31	31	31
Bottom bracket heightmm	343	343	343	343
Standover heightmm	741	743	742	742
Fork rakemm	44	45	44	44
Trailmm	125	123	125	125
Stack/reach ratio	1.46	1.39	1.33	1.27

Not published by the manufacturer: 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
Bicycle weight: 14.42 kg

31.8 lb

Suspension

Suspension configuration: Full suspension
Front travel: 160 mm
Rear travel: 140 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 52
Lowest gear: 17.9 in
Highest gear: 92.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Fork spring: Air
Tire width: 2.4″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

4 measures

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

Front travel

160 mm

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,808 bicycles with this information
Coverage: 97.5% of the class

Lowest gear

17.9 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,382 bicycles with this information
Coverage: 74.5% of the class

Highest gear

92.8 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,382 bicycles with this information
Coverage: 74.5% of the class

Shifting

Mechanical

387 of 1,847 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,847 bicycles with this information
Coverage: 99.6% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.8 km/h
Highest gear: 35.5 km/h

Total gear range 520%

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: 17.9–92.8 gear inches
Class reference (p10–p90): 17.1–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2025
Lowest gear: 1382 bicycles with this information, 74.5% of the class
Highest gear: 1382 bicycles with this information, 74.5% 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

Differences across 2025 builds
Specification	This bicycle Spot Mayhem 140 4-Star Transmission	Spot Mayhem 140 5-Star AXS	Spot Mayhem 140 6-Star AXS	Spot Mayhem 140 6-Star SL
Frame
Bicycle weight	14.42 kg	Not informed	13.56 kg	12.7 kg
Suspension
Front travel	160 mm	160 mm	160 mm	150 mm
Cockpit
Shifting	Mechanical	Electronic	Electronic	Electronic
Derailleur hanger	Not informed	UDH	UDH	Not informed
Other specifications
Wheel material	Aluminum	Aluminum	Carbon	Carbon