Transition Group: Spur Eagle 70

Name: Transition Group: Spur Eagle 70
Brand: Transition

2026 MountainTrail Manufacturer page

Last known price: $5,499

Prices shown first for United States
Travel: 130 / 120 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 32t / 10–52t
Gear range: 520%
Weight: 13.07 kg 28.8 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 154–170
MD 164–182
LG 175–190
XL 184–200

Components

20 of 22 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

Spur Carbon 120mm Not identified

Suspension

2 parts

Drivetrain

6 parts

Brakes

2 parts

Wheels and tires

5 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 460mm

Stack 617mm

Wheelbase 1197mm

Head angle 66.0°

Seat angle 76.8°

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	430	460	485	510
Stackmm	608	617	626	640
Top tube lengthmm	570	603	631	660
Seat tube lengthmm	360	390	430	460
Head tube lengthmm	100	110	120	135
Head tube angle	66°	66°	66°	66°
Seat tube angle	77.3°	76.8°	76.4°	76°
Chainstay lengthmm	434	434	439	439
Wheelbasemm	1163	1197	1231	1262
Front centermm	732	766	795	826
Bottom bracket dropmm	40	40	40	40
Bottom bracket heightmm	335	335	335	335
Standover heightmm	660	660	660	660
Fork rakemm	44	44	44	44
Trailmm	119	119	119	119
Stack/reach ratio	1.41	1.34	1.29	1.26

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: 13.07 kg

28.8 lb

Suspension

Suspension configuration: Full suspension
Front travel: 130 mm
Rear travel: 120 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

Derailleur hanger: UDH
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

130 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2026
Sample: 1,644 bicycles with this information
Coverage: 96.3% of the class

Lowest gear

17.9 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2026
Sample: 1,229 bicycles with this information
Coverage: 72.0% of the class

Highest gear

92.8 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2026
Sample: 1,229 bicycles with this information
Coverage: 72.0% of the class

Shifting

Mechanical

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

Cohort: Mountain / Trail Model year: 2026
Sample: 1,706 bicycles with this information
Coverage: 100.0% 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: 2026
Lowest gear: 1229 bicycles with this information, 72.0% of the class
Highest gear: 1229 bicycles with this information, 72.0% of the class