Polygon Heist X7

2025 UrbanHybrid Manufacturer page

Last known price: $799

Prices shown first for United States
Fork travel: 63 mm
Wheels: 700c
Drivetrain: 1 × 11 36t / 11–51t
Gear range: 464%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 155–166
MD 164–176
LG 174–186
XL 184–195

Components

15 of 19 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

aluminum Not identified

Suspension

2 parts

Fork
- SR Suntour
Rear shock

None

Drivetrain

7 parts

Bottom bracket

THREADED BB, BSA THREADED 68mm Not identified
Cassette
- Shimano 11–51t
Chain
- KMC X11 11 speeds
Chain guide
- KMC
Crankset
- Prowheel 36t
Rear derailleur
- Shimano Deore RD-M5100 11 speeds
RD-M5100
Shifters
- Shimano Deore SL-M5100
SL-M5100SL-5100

Brakes

3 parts

Wheels and tires

5 parts

Front hub

None
Rear hub

None
Rims

None
Spokes

None
Tires
- WTB Riddler

Cockpit and contact points

6 parts

Handlebar
- Entity
Headset

INTEGRATED W/ SEALED BEARING FOR TAPER HEAD TUBE, IS 42/28.6 | IS 52/40 Not identified
Pedals

PP CAGE PEDAL W/ REFLECTOR Not identified
Saddle
- Entity
Seatpost
- Entity
Stem
- Entity

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 415mm

Stack 621mm

Wheelbase 1093mm

Head angle 71.0°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c 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	385	415	440	465
Stackmm	621.18	621.18	630.64	640.1
Top tube lengthmm	563.12	593.12	620.8	648.54
Seat tube lengthmm	400	431	470	516
Head tube lengthmm	90	90	100	110
Head tube angle	71°	71°	71°	71°
Seat tube angle	74°	74°	74°	74°
Chainstay lengthmm	440	440	440	440
Wheelbasemm	1063.12	1093.12	1121.43	1149.63
Front centermm	633	662	691	719
Bottom bracket dropmm	70	70	70	70
Bottom bracket heightmm	289.5	289.5	289.5	289.5
Standover heightmm	688.3	708.7	742.5	781.5
Fork rakemm	51	51	51	51
Trailmm	66	66	66	66
Stack/reach ratio	1.61	1.50	1.43	1.38

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: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 63 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 36
Largest chainring: 36
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 51
Lowest gear: 20.5 in
Highest gear: 94.9 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
Fork spring: Air
Tire width: 45c
Wheel size: 700c

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.8 km/h
Highest gear: 36.4 km/h

Total gear range 464%

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: 20.5–94.9 gear inches

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 Polygon Heist X7	Polygon Heist X2	Polygon Heist X5
Drivetrain
Front chainrings	1	2	Not informed
Smallest chainring	36	34	Not informed
Largest chainring	36	46	Not informed
Rear sprockets	11	8	10
Smallest sprocket	11	12	Not informed
Largest sprocket	51	32	Not informed
Lowest gear	20.5 in	30.8 in	Not informed
Highest gear	94.9 in	111.2 in	Not informed
Other specifications
Bottom bracket standard	BSA	Not informed	Not informed
Fork spring	Air	Coil	Coil
Wheel material	Not informed	Not informed	Aluminum