Polygon Bend R2

Name: Polygon Bend R2
Brand: Polygon

2025 RoadGravel Manufacturer page

Last known price: $1,399

Prices shown first for United States
Suspension: Rigid
Wheels: 650b
Drivetrain: 2 × 9 34–46t / 11–34t
Gear range: 418%
Frame: Aluminum
Brakes: Mechanical disc

Rider height by size (cm)

Size guide

SM 154.9–167
MD 164–177
LG 174–185.4

Components

10 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.

Frame and fork

1 part

Frame

FRAME ALX Advance Alloy Gravel Frame, Flatmount Disc, Carrier & Fender Ready, 12x142mm Thru-Axle Not identified

Suspension

1 part

Fork

Carbon Rigid Fork, Carbon Steerer, Flatmount Disc, Carrier & Fender Ready, 12x100mm Thru-Axle Not identified

Drivetrain

6 parts

Cassette
- Shimano CS-HG200 11–34t
CS-HG200
Chain
- KMC X9 9 speeds
Crankset

Alloy Crankset, 46/34T, 170mm (S, M) / 175mm (L) Not identified
Front derailleur
- Shimano Sora FD-R3000 2 speeds
FD-R3000
Rear derailleur
- Shimano Sora RD-R3000-GS 9 speeds
RD-R3000-GSRD-R3000
Shifters
- Shimano Sora ST-R3000
ST-R3000

Brakes

1 part

Brakes
- Tektro MD-C400
MD-C400

Wheels and tires

3 parts

Front hub

Alloy Double Wall Wheelset 32h, 21mm Internal Width, Sealed Bearings, Thru Axle F/R: 12x100/12x142mm * Not identified
Rear hub

Alloy Double Wall Wheelset 32h, 21mm Internal Width, Sealed Bearings, Thru Axle F/R: 12x100/12x142mm * Not identified
Tires
- Vee Tire

Cockpit and contact points

5 parts

Headset

Alloy Tapered, IS 42/28.6 | ZS 52/40 Not identified
Pedals

Alloy Flat Not identified
Saddle
- Entity
Seatpost
- Entity
Stem
- Entity

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 380mm

Stack 599mm

Wheelbase 1019mm

Head angle 71.0°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 650b wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	365	380	395
Stackmm	569	599	632
Top tube lengthmm	528	551	576
Seat tube lengthmm	430	480	535
Head tube lengthmm	140	170	200
Head tube angle	71°	71°	72°
Seat tube angle	74°	74°	74°
Chainstay lengthmm	420	420	420
Wheelbasemm	999	1019	1034
Front centermm	592	612	627
Bottom bracket dropmm	80	80	80
Bottom bracket heightmm	261	261	261
Standover heightmm	677	720	767
Fork rakemm	50	45	45
Trailmm	61	66	60
Stack/reach ratio	1.56	1.58	1.60

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
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 46
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 27.5 in
Highest gear: 115.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 47c
Wheel size: 650b

Technical analysis

3 measures

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

Lowest gear

27.5 gear inches

This value is above the central range for this class.

Cohort: Road / Gravel Model year: 2025
Sample: 1,536 bicycles with this information
Coverage: 76.6% of the class

Highest gear

115.0 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2025
Sample: 1,536 bicycles with this information
Coverage: 76.6% of the class

Shifting

Mechanical

688 of 1,999 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2025
Sample: 1,999 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.5 km/h
Highest gear: 44.0 km/h

Total gear range 418%

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: 27.5–115.0 gear inches
Class reference (p10–p90): 22.8–126.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2025
Lowest gear: 1536 bicycles with this information, 76.6% of the class
Highest gear: 1536 bicycles with this information, 76.6% 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 2025 builds
Specification	This bicycle Polygon Bend R2	Polygon Bend R6	Polygon Bend R6X	Polygon Bend R7	Polygon Bend R9X	Polygon Bend V9X
Frame
Fork material	Carbon	Carbon	Carbon	Carbon	Carbon	Not informed
Suspension
Suspension configuration	Rigid	Rigid	Rigid	Rigid	Rigid	Hardtail
Front travel	Not informed	Not informed	Not informed	Not informed	Not informed	40 mm
Drivetrain
Front chainrings	2	1	1	1	1	1
Smallest chainring	34	38	38	40	40	40
Largest chainring	46	38	38	40	40	40
Rear sprockets	9	12	12	11	12	12
Smallest sprocket	11	10	11	11	10	10
Largest sprocket	34	44	44	42	44	52
Lowest gear	27.5 in	25.1 in	25.1 in	27.6 in	26.4 in	22.3 in
Highest gear	115.0 in	110.2 in	100.2 in	105.5 in	116.0 in	116.0 in
Brakes
Brake type	Mechanical disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Cockpit
Seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost	Dropper seatpost	Dropper seatpost	Dropper seatpost
Shifting	Mechanical	Mechanical	Electronic	Mechanical	Electronic	Electronic
Other specifications
Suspension	Rigid	Rigid	Rigid	Rigid	Rigid	Hardtail
Tire width	47c	45c	45c	44c	44c	50c
Wheel size	650b	700c	700c	700c	700c	700c
Tire clearance	Not informed	Maximum tire width: 50c; Additional specification: Wheel kind: 700	Maximum tire width: 50c; Additional specification: Wheel kind: 700	Not informed	Not informed	Not informed
Wheel material	Not informed	Aluminum	Aluminum	Aluminum	Carbon	Carbon
Bottom bracket standard	Not informed	Not informed	Not informed	Not informed	BSA	BSA
Fork spring	Not informed	Not informed	Not informed	Not informed	Not informed	Air

Changes since 2024
Specification	2024 Polygon Bend R2	This bicycle Polygon Bend R2
Frame
Bicycle weight	13.4 kg	Not informed
Other specifications
Bottom bracket standard	BSA	Not informed
Tire clearance	Maximum tire width: 47c; Additional specification: Wheel kind: 27.5, Maximum tire width: 40c; Additional specification: Wheel kind: 700	Not informed
Wheel material	Aluminum	Not informed