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2024 Jamis

HELIX A1

A 27.5″ aluminum frame hardtail women’s crosscountry bike with mid-range components.
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Manufacturer Price

$829
Weight31.2 lbs  
FrameAluminum
SuspensionHardtail, 100mm
ForkSuntour XCT
Wheels27.5″ Aluminum
Drivetrain1 × 9
GroupsetmicroSHIFT Advent
BrakesShimano Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
HELIX A1
Other Crosscountry 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

HELIX A1

27 mph

Similar Bikes

Highest gear

(descending)

Spec Level

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

Geometry
Specs
Build
Frame

6061 aluminum main tubes, over-sized seat tube, zero-stack head tube, over-sized stays, replaceable derailleur hanger

Fork

SR Suntour XCT 30 HLO 27.5”, coil spring, hydraulic speed lock out adjust, external preload adjustor, 30mm stanchions, aluminum lowers, 100mm travel

Travel100mm

Spring TypeCoil

Bottom Bracket

Sealed cartridge

Headset

Zero-stack internal cup, 8mm cone spacer

Stem

Jamis XC alloy threadless, 31.8 x 10 ̊ rise x 75mm (14”/16”), 90mm (18”)

Handlebar

Jamis XC alloy riser, 31.8 x 20mm rise x 680mm

Saddle

Jamis ATB Sport Women’s

Seatpost

Jamis alloy micro-adjust, 31.6 x 350mm (14”) 400mm (16”/18”)

TypeRigid

Pedals

MTB platform, hi-impact resin

Grips

Kraton

Groupset
Rear Derailleur

microSHIFT Advent M6195M 9-speed

Crank

Forged Alloy, 32T

Shifters

microSHIFT Advent M8195, 1×9-speed

Cassette

microSHIFT H093, 9-speed, 11-42T

Chain

KMC X9, 9-speed

Brakes

Shimano MT200 hydraulic disc, Shimano RT26 160mm rotors

TypeShimano Hydraulic Disc

Wheels
Rims

Alex TD26 27.5” double wall rims, 32H, alloy disc hubs, 14G black electroplated spokes

Tires

CST Patrol, 27.5 x 2.25”

Rider Notes
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First added July 17

Last updated June 14

Not listed for 349 days