Tern Vektron Q9 Bosch Active Plus 400w/h
SKU: 25448247385

Tern Vektron Q9 Bosch Active Plus 400w/h

Sale price$1362.26 Regular price$1513.62
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Description

Tern Vektron Q9 Bosch Active Plus 400w/hTHE ACCELERATOR New colors and updated styling Upgraded to the Bosch Active Line Plus electric drivetrain for up to 270% assistance and 50 Nm of torque Hydraulic disc brakes for all weather stopping power Updated frame with a reclining battery for a lower center of gravity and better ride Frame passed strict European safety standards for pedal assist e bikes, having been certified as EN15194 compliant by EFBE Prftechnik Integrated Atlas V Rack works

THE ACCELERATOR

  • New colors and updated styling
  • Upgraded to the Bosch Active Line Plus electric drivetrain for up to 270% assistance and 50 Nm of torque
  • Hydraulic disc brakes for all-weather stopping power
  • Updated frame with a reclining battery for a lower center of gravity and better ride
  • Frame passed strict European safety standards for pedal-assist e-bikes, having been certified as EN15194-compliant by EFBE Prüftechnik
  • Integrated Atlas V Rack™ works seamlessly with Thule Yepp Maxi and Dash® RM child seats—no adapters needed
  • Resizes in seconds to fit riders 147 – 195 cm (4’10” – 6’5”) so a single bike can be shared by the family

SPECIFICATIONS

GENERAL INFO

SPEEDS 1 x 9
WEIGHT 21.9 kg
GEAR INCHES 2.65 - 7.72 m
FOLDING SIZE 42 × 86 × 68.5 cm
FOLDING TIME 10 sec
FRAME SIZES One size
DISTANCE (SEATPOST TO HANDLEBAR) 62 - 69 cm
DISTANCE (SADDLE TO PEDAL) 67 - 110 cm
SUGGESTED RIDER HEIGHT 147 - 195 cm
MAX GROSS VEHICLE WEIGHT 125 kg
MAX RIDER WEIGHT 105 kg

FRAME

FRAME Tern Vektron, hydroformed 7005-AL, OCL+ joint, 3 patented technologies
FORK Tern Tarsus, 6061-Al, hydroformed

COCKPIT

HANDLEPOST Tern Physis 3D, 3D forged, 5 patented technologies, 12°, 320 mm
STEM Tern Andros, adjustable, forged construction, patented technology
HEADSET Tern Flux, cartridge bearings, Physis integrated
HANDLEBAR Flat bar, 6061-AL, Tern Andros adapted
GRIPS/BAR TAPE Velo ergonomic, lock-on
SADDLE Tern Porter, patented GripPad design
SEATPOST Tern Telescope, 34.9/30.9 mm, 2014-AL
SEATPOST CLAMP Tern Collar, 6061-AL, 2pc

BRAKES

FRONT BRAKE Shimano, hydraulic disc
REAR BRAKE Shimano, hydraulic disc
BRAKE LEVERS Shimano, hydraulic disc
BRAKE CABLE & HOUSING Shimano, hydraulic disc

WHEELS

FRONT HUB Shimano disc
REAR HUB Shimano disc
SPOKES AND NIPPLES Stainless steel
RIMS Kinetix Comp, for disc
TIRES Schwalbe Big Apple, 55-406, puncture protection, Reflex

TRANSMISSION

SHIFTER(S) Shimano Alivio, 1 x 9 spd, trigger
REAR DERAILLEUR Shimano Alivio Shadow
CRANKSET Tern custom, forged 6061-AL crankarm
CASSETTE/FREEWHEEL Shimano 11-32T, 9 spd
BOTTOM BRACKET Motor integrated
CHAIN 9 spd, DHT for eBike, GST corrosion resistant coating
PEDALS MKS EZY
SHIFTER CABLE & HOUSING Jagwire LEX-SL, slick treatment, alloy ferrules

E-SYSTEM

MOTOR Bosch Active Line Plus, 270% Assist, 50 Nm Torque, max speed 32 kph
BATTERY Bosch PowerPack 400Wh
DISPLAY Bosch Purion, 4 mode selectable, walk assist
RANGE 400 Wh: 55 -110 km
CHARGER 100-240V, 4A

BELLS & WHISTLES

BELL Aluminum
CHAINGUARD SKS Chainblade
KICKSTAND URSUS, rear mount
CLIP SYSTEM Magnetix 3.0
LUGGAGE SOCKET Yes
FRONT LIGHT Tern Valo Direct, 190 lumens
REAR LIGHT Herrmans H-Trace, for eBike
FENDERS SplashGuard, stainless hardware
RACK(S) Atlas V Rack™, integrated 8 point mounting; Max load weight: 27 kg

 

*Note: These are our standard model specifications. The bike's weight and folded dimension may not include racks and fenders. We do our best to ensure that the specifications listed here accurately reflect the exact parts found on our production bikes. However, component changes do occur for various reasons and there may be brief delays on site updates. We reserve the right to make component changes without prior notification, which may cause discrepancies with the information listed on the web.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 25448247385

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Gabrielle
Whiting, US
★★★★★ 5
Postpartum Opinion
Fit Type: Boyshort, Size: X-Large, Color: Assorted Colors
Bought the boy shorts size XL for postpartum and am still wearing them 8 months later! Holds all the postpartum goods in but are super stretchy too. Sooooo comfy! They do roll up when putting pants on but if you’re wearing them to bed or around the house, amazing!
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Reviewed in the United States on March 30, 2026
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NatureNerd
Lowell, US
★★★★★ 3
To fit or not to fit?
Fit Type: Boyshort, Size: XX-Large, Color: Assorted Colors
NIce quality, comfortable fabric, dries quick, and retains color after multiple washings. However; the fit did not work 100% for me. The legs kind of rode up and the boy shorts had a tendency to ride down, especially with consistent bending up and down activity. Good product but not a perfect fit for my shape. The bikini style was ideal and purchased multiple times.
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Reviewed in the United States on April 7, 2026
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Lotanya Mclean
Bozeman, US
★★★★★ 5
Comfortable
Fit Type: Boyshort, Size: Medium, Color: Assorted Colors
These are very comfortable, lovely colors. You need to size down when purchasing a the material is high stretch.
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Reviewed in the United States on May 26, 2026
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Kim
Phoenix, US
★★★★★ 5
Great choice
Fit Type: Boyshort, Size: XX-Large, Color: Assorted Colors
Very comfortable
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Reviewed in the United States on May 24, 2026
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bopster429
Boise, US
★★★★★ 5
Very comfortable, right length
Size: Large, Color: Black,grey
This product arrived as described. I like the trunk length, not the boxer brief length. They are comfortable. Hold up well when worn and washed. I don't seem to sweat as much. These were ordered to replace ones ordered about 2-3 years ago due loss of weight, had to down size. The waist band doesn't roll as like other brands.
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Reviewed in the United States on May 20, 2026

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