Polygon Syncline DR9 Di2

Name: Polygon Syncline DR9 Di2
Brand: Polygon

2026 MountainCross-country Manufacturer page

Travel: 120 / 110 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 34t / 10–51t
Gear range: 510%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 155–166
MD 164–176
LG 174–186
XL 184–196

Components

17 of 21 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

ACX Full Carbon XC Frame, 110mm Rear Travel, BSA Threaded 73mm BB Shell, UDH Compatible, Internal Brake and Shifter Routing, ISCG Mount, Boost 12x148mm Thru Axle, Disc Brake Post Mount 160mm Not identified

Suspension

2 parts

Drivetrain

6 parts

Bottom bracket

BSA, 73mm, threaded Not identified
Cassette
- Shimano XTR CS-M9200-12 12 speeds 10–51t
CS-M9200-12CS-M9200
Chain
- Shimano XTR CN-M9100
CN-M9100
Crankset

34T, Max Chainring 34T Not identified
Rear derailleur
- Shimano XTR RD-M9250 12 speeds
RD-M9250
Shifters
- Shimano XTR SW-M9250
SW-M9250

Brakes

2 parts

Wheels and tires

4 parts

Cockpit and contact points

6 parts

Handlebar
- FSA KFX
Headset
- FSA
Pedals

Alloy Flat, With Replaceable Pins Not identified
Saddle
- Fizik
Seatpost
- Fox TRANSFER SL
Stem
- FSA KFX 2-BOLT

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 435mm

Stack 601mm

Wheelbase 1189mm

Head angle 67.5°

Seat angle 71.2°

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
Frame
Reachmm	410	435	460	485
Stackmm	587	601	606	615
Top tube lengthmm	570	599	625	653
Seat tube lengthmm	384	432	470	510
Head tube lengthmm	95	105	115	125
Head tube angle	67.5°	67.5°	67.5°	67.5°
Seat tube angle	71.2°	71.2°	71.2°	71.2°
Chainstay lengthmm	440	440	440	440
Wheelbasemm	1217.7	1188.9	1160	1131
Front centermm	780	752	723	694
Bottom bracket dropmm	38	38	38	38
Bottom bracket heightmm	334.5	334.5	334.5	334.5
Standover heightmm	725	726	725	725
Fork rakemm	—	76	24	—
Trailmm	—	73	129	—
Stack/reach ratio	1.43	1.38	1.32	1.27
Suspension and parts
Crank lengthmm	170	170	175	175
Handlebar widthmm	760	760	760	760
Stem lengthmm	70	70	70	70

Not published by the manufacturer: Front travel, Rear travel, 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: 120 mm
Rear travel: 110 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 19.3 in
Highest gear: 98.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Derailleur hanger: UDH
Seatpost: Dropper seatpost
Shifting: Electronic

Additional specifications

Bottom bracket standard: BSA
Fork spring: Air
Tire clearance: Maximum tire width: 2.35″
Tire width: 2.35″
Wheel material: Carbon
Wheel size: 29″

Technical analysis

2 measures

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

Front travel

120 mm

This value is above the central range for this class.

Cohort: Mountain / Cross-country Model year: 2026
Sample: 1,209 bicycles with this information
Coverage: 90.0% of the class

Shifting

Electronic

156 of 1,318 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2026
Sample: 1,318 bicycles with this information
Coverage: 98.2% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.4 km/h
Highest gear: 37.8 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: 19.3–98.6 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 2026 builds
Specification	This bicycle Polygon Syncline DR9 Di2	Polygon Syncline C3	Polygon Syncline C5	Polygon Syncline DR6	Polygon Syncline DR8	Polygon Syncline DR9
Suspension
Suspension configuration	Full suspension	Hardtail	Hardtail	Full suspension	Full suspension	Full suspension
Rear travel	110 mm	Not informed	Not informed	110 mm	110 mm	110 mm
Drivetrain
Smallest chainring	34	32	32	32	32	34
Largest chainring	34	32	32	32	32	34
Smallest sprocket	10	11	11	10	10	10
Lowest gear	19.3 in	18.2 in	18.2 in	18.2 in	18.2 in	19.3 in
Highest gear	98.6 in	84.4 in	84.4 in	92.8 in	92.8 in	98.6 in
Cockpit
Derailleur hanger	UDH	Not informed	Not informed	UDH	UDH	UDH
Seatpost	Dropper seatpost	Rigid seatpost	Rigid seatpost	Dropper seatpost	Dropper seatpost	Dropper seatpost
Shifting	Electronic	Mechanical	Mechanical	Mechanical	Mechanical	Electronic
Other specifications
Bottom bracket standard	BSA	Not informed	Not informed	BSA	BSA	Not informed
Suspension	Full suspension	Hardtail	Hardtail	Full suspension	Full suspension	Full suspension
Tire clearance	Maximum tire width: 2.35″	Not informed	Not informed	Maximum tire width: 2.35″	Maximum tire width: 2.35″	Maximum tire width: 2.35″
Tire width	2.35″	2.25″	2.25″	2.35″	2.35″	2.35″
Wheel material	Carbon	Aluminum	Aluminum	Aluminum	Carbon	Carbon
Wheel size	29″	27.5″ / 29″	27.5″ / 29″	29″	29″	29″