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Carbon endurance road bike Trek Domane SL 6 Gen 4 105 Di2 ivy smoke 12-speed

Carbon endurance road bike Trek Domane SL 6 Gen 4: 105 Di2 for the mountains, rear IsoSpeed, 8.89 kg in size 56

Kč88,069.24 Incl. Tax

~~Kč95,856.63~~ MSRP

Recommended supplier selling price in 2026

Color

Green

Size

54cm
56cm

Size charts

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Trek Domane SL 6 Gen 4: electronic shifting for climbing cols

With its OCLV Series 500 carbon frame with rear IsoSpeed and its Shimano 105 Di2 2x12 drivetrain, the Trek Domane SL 6 Gen 4 weighs 8.89 kg in size 56 and rolls on Aeolus Elite 35 carbon wheels. The Ivy Smoke paint, a dark ivy green with smoky highlights, gives it an elegant, understated look. It targets the sportive rider who loves the mountains and wants a precise bike on long climbs.

Technical specifications

Frame	OCLV Series 500 carbon, rear IsoSpeed, Kammtail tubes, threaded T47 bottom bracket, tyres up to 38 mm (35 mm with mudguards)
Fork	Domane SL carbon, tapered steerer, internal hose routing, mudguard mounts, Flat Mount, 12x100 mm thru axle
Drivetrain	Electronic Shimano 105 Di2 R7150 2x12, R7100 50/34 chainset (crank length depends on size), 11-34 cassette, BT-DN300 battery
Brakes	Flat Mount discs, Shimano 160 mm Centerlock rotors (CL700 or RT70 depending on build)
Wheels / tyres	Bontrager Aeolus Elite 35 carbon / Kwaremont Pro 700x32 mm Tubeless Ready
Cockpit	Bontrager Comp alloy handlebar (width depends on size), Trek RCS Pro -7° stem (length depends on size)
Saddle / seatpost	Verse Short Comp 145 mm / KVF aero carbon post, 20 mm offset (length depends on size)
Integration	Down tube storage, internal cable routing, 3S chain keeper
Weight	8.89 kg in size 56 (Trek figure, with tubeless sealant)

At a glance

✓ OCLV 500 carbon, rear IsoSpeed	✓ Electronic Shimano 105 Di2
✓ Aeolus Elite 35 carbon wheels	✓ Down tube storage
✓ 38 mm tyre clearance	✓ 8.89 kg in size 56

Who is it for?

For the weekend climber preparing for a mountain sportive, the cyclist who often rides alone on long loops and wants consistently clean shifts, or anyone looking for electronics without going as far as Ultegra. This colour is available here in 54 and 56, for riders from 168 to 180 cm.

The LVR workshop view

OCLV carbon, Trek's signature. Behind the OCLV acronym, for Optimum Compaction Low Void, lies a moulding process in which the carbon sheets are pressed at high temperature until the microscopic bubbles are driven out. Trek has been refining this method since 1992, and the series printed on the tube shows how far it has been taken: for equal strength, a higher series needs fewer fibres. All OCLV frames benefit from the brand's lifetime warranty.

	OCLV 500 (Domane SL)	OCLV 900 (Domane SLR)
Range	The carbon of the Domane SL, including this SL 6	The carbon of the Domane SLR
Moulding	Full OCLV process, slightly more fibre	Rigid 3D mould, fewer overlaps
Benchmark (Gen 5 frame, ML)	approx. 1,055 g	approx. 835 g unpainted
Real difference	Tough, comfortable, more affordable	About 220 g less; up to 20 % stronger than OCLV 800

On the climbs, Di2 proves its worth: you change sprocket under full load without any crunching, with a simple press, even when your hands are tired after the third col of the Caroux. The 50/34 paired with the 11-34 leaves a bail-out gear for the steepest sections, and the KVF post flexes just enough when you stay seated for a long time.

On the descents, the 160 mm rotors and the carbon fork with thru axle give stable braking down towards Lamalou-les-Bains, while the Kammtail tubes reduce wind drag on the long fast stretches of the Minervois. In the workshop, we check the Di2 battery and firmware at every service, as well as the pads after a season of cols.

Which Domane should you choose?

Model	Frame	Drivetrain	Wheels	Weight (size)
Domane SL 5 Gen 4	OCLV 500, IsoSpeed, 38 mm max.	Shimano 105 mechanical	Aluminium	9.09 kg (56)
Domane SL 6 Gen 4	OCLV 500, IsoSpeed, 38 mm max.	Shimano 105 Di2	Carbon 35 mm	8.89 kg (56)
Domane SL 7 Gen 4	OCLV 500, IsoSpeed, 38 mm max.	Shimano Ultegra Di2	Carbon 51 mm	8.42 kg (56)
Domane SL 6 AXS (Gen 5)	OCLV 500, no IsoSpeed, 40 mm max.	SRAM Rival AXS wireless	Carbon 50 mm	8.64 kg (ML)

Our take: the SL 6 Gen 4 keeps IsoSpeed, integrated storage and Shimano Di2, while the Gen 5 SL 6 AXS switches to SRAM, weighs 8.64 kg in ML against 8.89 kg in 56 here and takes 40 mm tyres. If every gram counts, the SL 7 Gen 4 drops to 8.42 kg in 56.

LVR sizing advice

Available in 54 and 56. The 54 suits 168 to 174 cm, the 56 174 to 180 cm; at the boundary, your inseam decides.

Size	54	56
Rider height (cm)	168-174	174-180
Inseam (cm)	78-82	81-85
Stem (mm)	90	100

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

Your questions

A good bike for the mountains?	Yes: 8.89 kg in 56, 50/34 and 11-34 to keep a gear in reserve.
Di2 in the rain?	No problem, it is designed to be ridden in all weathers.
Where do I carry my kit?	In the down tube compartment, designed for the repair kit.
Wider tyres?	Up to 38 mm without mudguards and 35 mm with, for rough mountain roads.

The LVR Cycles verdict

An electronic Domane that makes life easier in the mountains, with a reasonable weight and a frame that filters out vibration. We recommend it to the sportive rider who ticks off the cols and wants flawless shifting.

Pros
+ Precise Di2 under effort
+ Aeolus Elite 35 carbon wheels
+ IsoSpeed comfort on seated climbs

Cons
- Not under 8.5 kg
- Basic alloy handlebar

Why buy from LVR Cycles? As the Trek retailer in Béziers, LVR Cycles builds your Domane SL 6 Gen 4, programmes the Di2 to suit your habits, dials in your position and takes care of servicing between seasons in the mountains.

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-5338917

Data sheet