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2026 Conway

Cairon S 4.0 Hardtail

A 29″ aluminum frame hardtail trail e-bike with modest components.
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Manufacturer Price

€3,799($4,354)
Weight54.7 lbs  
FrameAluminum
SuspensionHardtail, 120mm
ForkSuntour XCR Air
Wheels29″ Aluminum
Drivetrain1 × 10
GroupsetCUES
MotorBosch 250W 85Nm mid-drive
BatteryBosch 800Wh
BrakesTektro Hydraulic Disc
View on conway-bikes.comLearn about Conway
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Cairon S 4.0 Hardtail
Other Trail bikes
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

None yet.

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Price History
Reviews
E-Mountainbike Magazine
CONWAY CAIRON SUV FS 7.7 on test for best SUV ebike 2024 – Step-through bike with off-road skills

Nov 2023 · Rudolf Fischer

The CONWAY CAIRON SUV FS 7.7 is an exceptional off-road step-through bike. But, will its impressive off-road performance push it to the top of the SUV ebike league?

Highs
  • High level of ride comfort and safety

  • Playful and intuitive handling

  • Fair price

Lows
  • Cluttered cockpit

  • Plastic rear light looks a bit old-fashioned

Read Review

Geometry
Specs
Build
Frame

CONWAY Intube Bosch, Alu

BB StandardBosch, Press Fit

ColorBlack

Fork

SUNTOUR "XCR34X Air"

Travel120mm

Spring TypeAir

Bottom Bracket

BOSCH

Headset

ACROS "ZS56-ZS56", Blocklock

Stem

KALLOY "AS-DC1N", 60mm

Handlebar

KALLOY "HB-RB11", Rise 15mm, 740mm

Saddle

SELLE ROYAL "SRX+", 145mm

Seatpost

JD "Two piece alloy", 31,6 mm, 350 mm

TypeRigid

Grips

SQLAB "70X"

Groupset
Rear Derailleur

Shimano, Cues_U6000, 10-speed

Crank

MIRANDA "Virage", 160 mm

Shifters

SHIMANO "Cues SL-U6000"

Cassette

SHIMANO "LG300-10", 11-48 Z.

Brakes

TEKTRO "HD-M280"

TypeTektro Hydraulic Disc

Brake Levers

TEKTRO "HD-M280"

Wheels
Rims

RODI "Tryp 30 Evo", 30-622

Spokes

ALPINA

Front Hub

SHIMANO "HB-TC500", 15 x 110 mm

Rear Hub

SHIMANO "FH-TC500", 12 x 148mm, HG

Tires

SCHWALBE "Smart Sam", black / bronze

Electric Components
Motor

BOSCH Mittelmotor Gen.5 "Performance CX", 36 V, 250 W

Battery

BOSCH "Powertube 800", Lithium-Ionen mit BMS, HOR w. SOP Pivot

Remote

BOSCH "Purion 200"

Display

BOSCH "Purion 200"

Charger

Bosch 2 A, BES3

Rider Notes
Riders Also Viewed

First added August 30

Last updated June 20