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Electric trekking bike Trek Inbound+ 2 B 540 SO belt dark star 540 Wh

Electric trekking bike Trek Inbound+ 2 belt straight frame black: Bosch 540 Wh, 180 mm brakes, 21.60 kg in L

kr17,571.59 Incl. Tax

Color

Black

Size

Size charts

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Trek Inbound+ 2 B 540 Dark Star: town riding all year round, hassle-free

In Dark Star, a deep, plain black, the Trek Inbound+ 2 B 540 is an understated electric city bike, built to ride all year round. A straight Alpha Smooth aluminium frame, a Bosch rear hub motor, a Gates belt and a 540 Wh PowerTube battery make a reliable base. It weighs 21.60 kg in size L according to Trek.

Technical specifications

Frame	Alpha Smooth aluminium, straight frame with horizontal top tube, integrated cables
Motor	Bosch integrated into the rear hub, Bosch smart system, 45 Nm, 250 W, assistance up to 25 km/h
Battery	Bosch PowerTube 540 Wh, removable and lockable
Drivetrain	Gates Sidetrack belt, single speed, 22-tooth rear sprocket
Brakes	Shimano hydraulic disc, MT201 levers, UR300 calipers, 180 mm rotors front and rear
Wheels / tyres	Bontrager Kovee double-wall Tubeless Ready rims (23 mm), Shimano QC300 front hub / Bontrager E6 Hard-Case Lite 700x50 tyres, reflective sidewalls, aramid bead
Cockpit	Alloy lowriser 690 mm handlebar, 25 mm rise, 11° backsweep; Bontrager adjustable-angle stem, Blendr compatible, 70 or 110 mm depending on size
Saddle / seatpost	Selle Royal Vivo Moderate Ergo / Bontrager alloy seatpost 31.6 mm, 12 mm offset, 330 mm
Equipment	Pletscher Comp Flex 40 kickstand, Bontrager City pedals
Weight	21.60 kg in size L (Trek figure)

At a glance

✓ PowerTube 540 Wh battery	✓ Gates Sidetrack belt
✓ Bosch 45 Nm hub motor	✓ Reflective E6 Hard-Case Lite tyres
✓ Hydraulic brakes, 180 mm rotors	✓ 21.60 kg in size L

Who is it for?

For the everyday rider who rides in all weathers, from scorching summers to rainy November mornings, and expects the bike to start every day without fail. It will appeal to anyone who values reliability and discretion.

The LVR workshop view

Still belt drive, now with 540 Wh. The Inbound+ 2 B 540 follows the belt-drive Inbound+ formula, a single-speed Gates Sidetrack drivetrain and a Bosch motor integrated into the rear hub, but carries a 540 Wh PowerTube battery instead of 360 Wh. Charges are further apart, with no change to the cleanliness or silence of the drivetrain. Straight Alpha Smooth aluminium frame.

	PowerTube 540 Wh (B 540)	PowerTube 360 Wh (B)	PowerTube 600 Wh (R10)
Capacity	540 Wh	360 Wh	600 Wh
Paired drivetrain	Gates belt, 1-speed	Gates belt, 1-speed	Shimano CUES, 10-speed
Straight-frame version	21.60 kg (L)	20.70 kg (L)	22.60 kg (L)
What it means	Belt drive and fewer charges	The lightest for town	Energy and gears for hills

In short: 180 Wh more than the Inbound+ 2 B for an extra 900 g (21.60 kg in L). If you like the idea of a maintenance-free belt but ride beyond the town centre, this is the version to go for.

The Gates belt doesn't care about rain, dust or salt: it doesn't rust and needs no oil. For a bike ridden all year round, that's a real time-saver on maintenance. The motor's assistance cuts out above 25 km/h, in line with e-bike regulations.

In summer, avoid leaving the battery in direct sunlight on the parked bike; in winter, bring it indoors if it's freezing. The 540 Wh PowerTube comes out of the frame and locks with a key: parked on the street, the bike keeps its battery safe from prying hands. A D-lock and insurance are still recommended.

Which Inbound+ should you choose?

Model	Motor / battery	Drivetrain	Frame	Weight (size)
Inbound+ 2 B	Bosch hub 45 Nm / 360 Wh	Gates belt, 1-speed	Straight	20.70 kg (L)
Inbound+ 2 B 540	Bosch hub 45 Nm / 540 Wh	Gates belt, 1-speed	Straight	21.60 kg (L)
Inbound+ 2 R10	Bosch hub 45 Nm / 600 Wh	Shimano CUES 10-speed	Straight	22.60 kg (L)
Inbound+ 2 B 540 LS	Bosch hub 45 Nm / 540 Wh	Gates belt, 1-speed	Lowstep	21.40 kg (M)

Our take: this black B 540 weighs 900 g more than the Inbound+ 2 B (20.70 kg in L) for 180 Wh more. Compared with the R10 (22.60 kg), it saves 1 kg but does without the ten gears.

LVR sizing advice

Straight frame in M (155 to 173 cm), L (170 to 185 cm) and XL (185 to 203 cm). As the battery weighs a little more than on the 360 Wh version, a size that lets you put a foot down easily makes stops at the lights more relaxed.

Size	M	L	XL
Rider height (cm)	155-173	170-185	185-203
Inseam (cm)	77-96	80-99	86-105
Stem (mm)	70	110	110

Source: Trek size guide. Bike fitting available in our Béziers shop.

Your questions

Can I ride in the rain?	Yes, the belt and the Bosch system are designed for rain.
How do I protect the battery in summer?	Avoid prolonged direct sunlight; charge it somewhere shaded and cool.
Is the battery theft-proof?	It locks into the frame with a key; add a D-lock for the bike.
Does the black get hot in the sun?	Like any black, it warms up a little; park in the shade if possible.

The LVR Cycles verdict

A robust, understated electric city bike, designed to ride all year round without demanding maintenance. Its deep black gives it a discreet, elegant look.

Pros
+ Weatherproof belt
+ Lockable 540 Wh battery
+ Understated black

Cons
- Single speed
- Black hard to see at night

Why buy from LVR Cycles? As a Trek retailer in Béziers, we advise you on using the battery through the seasons, locks and insurance, and handle Bosch diagnostics and belt checks at every service.

Please note that the specifications may be changed without prior notice by the manufacturer, based on the availability of components and other factors.

Reference TRK-5358751

Data sheet