Helkama Velox Oy

Helkama SX 9s electric bike

High-frame electric hybrid for all terrains with a 504 Wh battery.

3299,00€

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The Helkama SX is a high-frame hybrid electric bike that delivers a stable ride and versatile performance, perfect for both city streets and gravel roads.

This 9-speed electric hybrid is ideally suited for commuting, everyday cycling, and leisure trips where comfort, control, and efficient progress are valued. The Shimano EP5 mid-drive motor delivers 60 Nm of torque, offering a natural and smooth electric assist across varying riding conditions. The elegantly integrated 504 Wh battery ensures reliable range for daily use, commutes, and longer rides. Stable frame geometry and an active, slightly sporty riding posture provide a pleasant experience on both asphalt and hard-packed gravel surfaces. The 9-speed drivetrain offers a wide range of gears for diverse terrains and cycling needs, enhancing the bike’s usability year-round. Large tires roll smoothly and maintain steady handling across different surfaces. Carefully finished details, high-quality components, and versatile riding capabilities make the Helkama SX a dependable e-bike for active use in urban settings and variable routes. Designed to meet real everyday needs, from commuting to leisure cycling, it offers stable handling, versatile rideability, and reliable electric assistance—giving you the freedom to travel on your own terms, day after day. Its dependable design ensures smooth riding in any season.

SX hybrid e-bike

Riding position
Upright Active Race
Chassis suitability
Permanent pavement Graveled road Needle trail Rhizome & pebble Deep snow & sand
Features
Components

Additional information

Product name
Frame

Alumiini

Frame size

L (19"), M (17"), XL (21")

Front fork

Suntour SF23-NX1-32-Boost AIR 100mm

Transmission

Shimano CUES RD-U4020 Linkglide

Gear amount

9

Shifter

Shimano CUES SL-U4000 Linkglide

Front brakes

Shimano MT410 hydraulic disc brake 180mm

Rear brakes

Shimano MT410 hydraulic disc brake 180mm

Brake lever

Shimano MT401

Crank set

Shimano EM600, 170mm/Shimano ET600 38T

Chain

Shimano CN-LG500 Linkglide

Rims

Mach1 Trucky 30-622, 32H

Saddle

Ergon ST10 GEL

Seatpost

30,9 x 350 mm

Handlebar
Stem

Ergotec Sepia XL 100mm, säädettävä

Rear axle measurements

QR 168mm, OLD 135mm

Tires

Schwalbe Energizer Plus Tour

Wheel size

29"

Tire size ETRTO

55-622

Motor brand

Shimano

Motor model

Shimano EP5

Motor specifications

250W – 36V – 60Nm- 25km/h

Battery model

Shimano EN805-L

Battery Energy (Wh)

504

Battery placement

Integrated

Battery charging time

80% 4h / 100% 7,5h

Charger

Shimano E6002

Display

Shimano EN500

Color

anthracite

Weight limit (kg)

130

Luggage rack weight limit
Weight (kg)

m-17: 26,6
l-19: 26,8
xl-21: 26,6

Helkama SX 9s electric bike: m-17

fs ‐ Frame size 17"
st ‐ Seat tube length 430
tt ‐ Efektiivinen vaakaputki 605
ht ‐ Head tube length 125
hta ‐ Head tube angle 67,5
sta ‐ Efektiivinen istuinkulma 74,5
cs ‐ Chainstay length 465
bd ‐ Bottom bracket drop 63
fo ‐ Fork rake/offset 528
s ‐ Stack 651
r ‐ Reach 425
wb ‐ Wheelbase 1179

Helkama SX 9s electric bike: l-19

fs ‐ Frame size 19"
st ‐ Seat tube length 480
tt ‐ Efektiivinen vaakaputki 628
ht ‐ Head tube length 135
hta ‐ Head tube angle 67,5
sta ‐ Efektiivinen istuinkulma 74,5
cs ‐ Chainstay length 465
bd ‐ Bottom bracket drop 63
fo ‐ Fork rake/offset 528
s ‐ Stack 660
r ‐ Reach 445
wb ‐ Wheelbase 1203

Helkama SX 9s electric bike: xl-21

fs ‐ Frame size 21"
st ‐ Seat tube length 530
tt ‐ Efektiivinen vaakaputki 648
ht ‐ Head tube length 145
hta ‐ Head tube angle 67,5
sta ‐ Efektiivinen istuinkulma 74,5
cs ‐ Chainstay length 465
bd ‐ Bottom bracket drop 63
fo ‐ Fork rake/offset 528
s ‐ Stack 670
r ‐ Reach 462
wb ‐ Wheelbase 1224