2021 Polygon

SYNCLINE C5

A 27.5″ / 29″ carbon frame hardtail trail bike with upper mid-range components.
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Manufacturer Price

$1,799
Weight26.2 lbs  
FrameCarbon
SuspensionHardtail, 120mm
ForkFox Rhythm Float 32
Wheels27.5″ / 29″ Aluminum
Drivetrain1 × 12
GroupsetSLX
BrakesHydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
SYNCLINE C5
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

28 mph

SYNCLINE C5

26 mph

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Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full Syncline model range

View Comparison
Sizing
SM

5'2" – 5'7"

MD

5'5" – 5'10"

LG

5'9" – 6'2"

XL

6'0" – 6'5"

Rider Fit Notes

None yet.

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Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

ACX XC PERFORMANCE

ColorGreen

Fork

FOX 32 RHYTHM, 120mm TRAVEL

Travel120mm

Spring TypeAir

Shock

-

Spring TypeAir

Bottom Bracket

SHIMANO MT500

Headset

FP-H869 TAPERED ID: 42/52MM

Stem

ENTITY XPERT, ALLOY

Handlebar

ENTITY XPERT, ALLOY

Saddle

ENTITY VOID SADDLE

Seatpost

ENTITY XPERT, ALLOY

TypeRigid

Pedals

-

Groupset
Rear Derailleur

SHIMANO SLX RD-M7100

Crank

SHIMANO FC-M7100 32T

Shifters

SHIMANO SLX SL-M7100, 1x12-SPEED

Cassette

SHIMANO CS-M6100 10-51T

Chain

KMC X-12

Chain Guide

none

Brakes

SHIMANO BR-MT410 HYDRAULIC DISC BRAKE

TypeHydraulic Disc

Brake Levers

INCLUDE BRAKE

Wheels
Rims

ENTITY XL2 32H

Front Hub

Shimano HB-MT400, Thru Axle 15x110mm, 32h Center-Lock

Rear Hub

Shimano FH-MT400, Thru Axle 12x148mm, 32h Center-Lock

Tires

WTB TRAIL BOSS 27.5"x2.25" / 29"x2.25"

Rider Notes
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Last updated October 23
Not listed for 547 days