Contact us for a personalized quote [email protected]

EU companies: VAT-free purchase available [email protected]

Need advice before your purchase? [email protected]

Carbon endurance road bike Trek Domane SL 6 Gen 4 105 Di2 dark star to bronze age fade 12-speed

Carbon endurance road bike Trek Domane SL 6 Gen 4: Shimano 105 Di2, Aeolus Elite 35 carbon wheels, 8.89 kg in 56

$4,060.22 Incl. Tax

~~$4,419.24~~ MSRP

Recommended supplier selling price in 2026

Color

Black

Size

54cm
56cm
58cm

Size charts

LVR Cycles low price guarantee

If you find a lower price elsewhere, contact us.

Montage complet offert

Our bike technicians at your service.

Trade-in of your bicycle (free estimate)

Finance this purchase with your used bike.

Quantity

Currently unavailable

Trek Domane SL 6 Gen 4: electronic shifting and carbon wheels

The Trek Domane SL 6 Gen 4 brings together the OCLV Series 500 carbon frame with rear IsoSpeed, the electronic Shimano 105 Di2 groupset and Bontrager Aeolus Elite 35 carbon wheels, for 8.89 kg in size 56. In Dark Star to Bronze Age Fade, it shifts from deep black to bronze highlights, a classy finish that stays discreet. Offered here in 54, 56 and 58, it is aimed at medium to tall riders who ride in a group.

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 club rider who wants crisp shifts every time the pace lifts, the cyclist who rides with others and likes changing gear without thinking about it, or the sportive rider who wants to move up the range without leaving the Shimano world. Sizes 54, 56 and 58 cover riders from 168 to 185 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

105 Di2 changes the way you ride in a bunch: one press is enough, the front derailleur trims itself and shifting stays precise even in winter gloves. The shifters communicate wirelessly, the BT-DN300 battery sits inside the frame and charges through the rear derailleur; one charge lasts for many rides.

35 mm carbon rims are a good compromise for our region: deep enough to hold your speed on the flat across the vineyard plain, shallow enough to stay calm when the sea wind picks up on the coast road. Combined with IsoSpeed and Kammtail tubes, they make the SL 6 a lively bike that stays smooth on the coarse tarmac of the hinterland.

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

Offered here in 54, 56 and 58. Between two sizes, the larger one suits flexible riders who ride in a group, the smaller one a more upright position.

Size	54	56	58
Rider height (cm)	168-174	174-180	180-185
Inseam (cm)	78-82	81-85	84-87
Cranks (mm)	170	170	172.5
Stem (mm)	90	100	100

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

Your questions

Is Di2 reliable?	Yes, and we handle updates and diagnostics in the workshop.
Frequent charging?	No, one charge lasts for many rides; an indicator light warns you.
For fast club rides?	Yes, 35 mm carbon wheels and crisp acceleration; for pure racing, look at the Madone.
Which size for 1.78 m?	The 56 (174-180 cm); between two sizes, come and try in store.

The LVR Cycles verdict

The Domane SL 6 Gen 4 brings electronics and carbon wheels without giving up IsoSpeed. We recommend it to the club rider who wants a precise, comfortable bike for several seasons.

Pros
+ Precise Shimano 105 Di2
+ Versatile 35 mm carbon wheels
+ IsoSpeed and integrated storage

Cons
- Battery to keep an eye on
- Alloy chainset and handlebar
- Stock tyres in 32 mm

Why buy from LVR Cycles? In Béziers, we prepare every Domane SL 6 Gen 4 on the workshop stand, check the Di2 and adjust your position before the first ride, and servicing then continues on site.

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-5337791

Data sheet