Nukeproof Reactor 275c Elite

2020 MountainTrail

Travel: 150 / 140 mm Fork / rear shock
Wheels: 27.5″
Drivetrain: 1 × 12 32t / 10–51t
Gear range: 510%
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

16 of 20 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

Nukeproof Reactor 275 Carbon, 140mm Rear Travel, UD woven Carbon Fibre front triangle/chain stays/seat stays, internal cable routing, custom tuned rear shock, Enduro bearings, threaded bottom bracket, boost 148mm rear axle spacing, 3D contoured frame protection Not identified

Suspension

2 parts

Drivetrain

6 parts

Bottom bracket

Threaded 73mm BSA Not identified
Cassette
- Shimano SLX CS-M7100-12 12 speeds 10–51t
CS-M7100-12
Chain guide

ISCG05 Not identified
Crankset
- Shimano SLX FC-M7100 12 speeds 32t
FC-M7100
Rear derailleur
- Shimano SLX RD-M7100-SGS 12 speeds
RD-M7100-SGS
Shifters
- Shimano SLX SL-M7100-IR 12 speeds
SL-M7100-IR

Brakes

2 parts

Wheels and tires

3 parts

Rear hub

Boost 148x12mm Not identified
Rims
- DT Swiss
Tires
- Maxxis

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 454mm

Stack 605mm

Wheelbase 1181mm

Head angle 66.0°

Seat angle 75.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ 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
Frame
Reachmm	425	454	482.5	516
Stackmm	600	605	609	613.5
Top tube lengthmm	580	610	640	675
Seat tube lengthmm	391	420	456	509
Head tube lengthmm	110	115	120	125
Head tube angle	66°	66°	66°	66°
Seat tube angle	75.5°	75.5°	75.5°	75.5°
Chainstay lengthmm	430	430	430	430
Wheelbasemm	1150	1181	1212	1247
Front centermm	721	752	783	818
Bottom bracket dropmm	19	19	19	19
Bottom bracket heightmm	336	336	336	336
Fork rakemm	46	46	46	46
Trailmm	121	122	121	121
Stack/reach ratio	1.41	1.33	1.26	1.19
Suspension and parts
Front travelmm	150	150	150	150

Not published by the manufacturer: Standover height, 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

Suspension

Suspension configuration: Full suspension
Front travel: 150 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: 51
Lowest gear: 17.3 in
Highest gear: 88.0 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 clearance: Maximum tire width: 2.6″
Tire width: 2.5″
Wheel material: Aluminum
Wheel size: 27.5″

Technical analysis

4 measures

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

Front travel

150 mm

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2020
Sample: 1,348 bicycles with this information
Coverage: 93.8% of the class

Lowest gear

17.3 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2020
Sample: 1,217 bicycles with this information
Coverage: 84.6% of the class

Highest gear

88.0 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2020
Sample: 1,217 bicycles with this information
Coverage: 84.6% of the class

Shifting

Mechanical

55 of 1,437 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2020
Sample: 1,437 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.6 km/h
Highest gear: 33.7 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: 17.3–88.0 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: 2020
Lowest gear: 1217 bicycles with this information, 84.6% of the class
Highest gear: 1217 bicycles with this information, 84.6% 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 2020 builds

Differences across 2020 builds
Specification	This bicycle Nukeproof Reactor 275c Elite	Nukeproof Reactor 275c Factory	Nukeproof Reactor 275 Comp	Nukeproof Reactor 275c Pro	Nukeproof Reactor 275c RS	Nukeproof Reactor 275 Expert
Frame
Frame material	Carbon	Carbon	Aluminum	Carbon	Carbon	Aluminum
Suspension
Front travel	150 mm	150 mm	150 mm	150 mm	160 mm	150 mm
Drivetrain
Smallest sprocket	10	10	11	10	10	11
Largest sprocket	51	51	50	50	50	50
Lowest gear	17.3 in	17.3 in	17.6 in	17.6 in	17.6 in	17.6 in
Highest gear	88.0 in	88.0 in	80.0 in	88.0 in	88.0 in	80.0 in