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2021 CTM

Zephyr Pro 27.5"

A 27.5″ aluminum frame hardtail trail bike with high-end components.
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Weight30.6 lbs  
FrameAluminum
SuspensionHardtail, 130mm
ForkRockShox Recon Silver RL
Wheels27.5″ Aluminum
Drivetrain1 × 12
GroupsetX1, SX Eagle
BrakesShimano Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Zephyr Pro 27.5"
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)

24 mph

Zephyr Pro 27.5"

26 mph

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Highest gear

(descending)

Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

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Geometry
Specs
Build
Frame

Aluminum

BB StandardBSA, 73mm, Threaded

Fork

RockShox Recon RL, Solo Air spring, 46mm offset

Travel130mm

Spring TypeAir

Shock

None

Bottom Bracket

SRAM MTB DUB, BSA threaded

Headset

NECO H-383

Stem

CTM LCS, 31.8mm bar clamp, 50mm length

Handlebar

CTM HB-RB12, 31.8mm clamp diameter, 760mm width, 9° rise

Saddle

WTB Volt

Seatpost

EXA Form KSP900 dropper, Drop: 100mm (SM), 125mm (MD), 150mm (LG/XL)

TypeDropper

Pedals

HT PA12

Groupset
Rear Derailleur

SRAM SX Eagle, 12-speed

Front Derailleur

None

Crank

SRAM X1 1000 Eagle DUB, 170mm length

Shifters

SRAM SX Eagle, 12-speed

Cassette

SRAM SX Eagle PG-1210, 12-speed, 11-50 tooth

Chain

SRAM SX Eagle, 12-speed

Chain Guide

Upper slider

Brakes

Shimano MT400, 2-piston, Shimano RT54 rotors

TypeShimano Hydraulic Disc

Brake Levers

Shimano MT400

Wheels
Rims

WTB ST i29 TCS 2.0, 32 hole

Front Hub

Shimano MT400, 110x15mm Boost front, 148x12mm Boost rear with HG driver

Rear Hub

Shimano MT400, 110x15mm Boost front, 148x12mm Boost rear with HG driver

Tires

WTB Trail Boss, G2, Comp, TCS, 27.5" x 2.4"

Rider Notes
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First added May 4

Last updated May 4

Not listed for 1,851 days