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Carbon triathlon bike Trek Speed Concept SLR 7 Ultegra Di2 party purple 12-speed

Carbon triathlon bike Trek Speed Concept SLR 7: Ultegra Di2, Aeolus Pro 37 wheels, IsoSpeed, 8.97 kg in M

$9,535.19 Incl. Tax

Color

Violet et Noir

Size

Size charts

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Trek Speed Concept SLR 7: your first proper triathlon bike

Designed for triathlon and time trials, the Trek Speed Concept SLR 7 brings together an OCLV Series 800 carbon frame, Shimano Ultegra Di2 2x12 and Aeolus Pro 37 carbon wheels, for 8.97 kg in size M. It is a big step up from a road bike fitted with clip-on aero bars: the geometry, bar and seatpost are all designed to hold a stretched-out position. The Party Purple paintwork pairs a vivid purple with touches of black, so you will be easy to spot in transition.

Technical specifications

Frame	OCLV Series 800 carbon, KVF (Kammtail Virtual Foil) aero tubes, IsoSpeed, T47 threaded bottom bracket
Fork	Speed Concept full-foil carbon, integrated brake calliper and stem
Drivetrain	Shimano Ultegra Di2 2x12, Ultegra R8100 52/36 chainset, R8101 11-30 cassette, BT-DN300 battery
Brakes	Shimano hydraulic disc (Dura-Ace according to Trek), CL800 Centerlock 160 mm rotors
Wheels / tyres	Bontrager Aeolus Pro 37 carbon / Bontrager R3 700x25 mm
Cockpit	Speed Concept mid-rise bar/stem with adjustable extensions
Saddle / seatpost	Bontrager Hilo Comp or Hilo Pro carbon / Speed Concept SLR seatpost, 11.5 or 20 mm offset
Weight	8.97 kg in size M (Trek figure)

At a glance

✓ OCLV 800 carbon frame, KVF tubes	✓ Shimano Ultegra Di2 2x12
✓ Aeolus Pro 37 carbon wheels	✓ IsoSpeed for comfort
✓ Adjustable mid-rise extensions	✓ 8.97 kg in size M

Who is it for?

For the triathlete who has done a few seasons on a road bike and wants to move to a dedicated machine, from Olympic distance to 70.3. It also suits the strong rider discovering individual time trials with their club. This is not a bike for group rides: in the aero position, the brakes are no longer under your hands.

The LVR workshop view

OCLV carbon, Trek's signature. Since 1992, Trek has compacted its carbon fibre layers under heat and pressure to eliminate micro-voids, the air bubbles that weaken a structure. On the Speed Concept SLR 7, this expertise is put to work for aerodynamics: OCLV Series 800 makes it possible to mould very deep KVF tubes that stay stiff despite their large surface area. Like all OCLV frames, it is covered by the Trek lifetime warranty.

	OCLV 800 (Speed Concept SLR)	OCLV 900 (Madone SLR)	OCLV 500 (Madone SL)
Level	Trek's former top-end road carbon	Trek's most advanced carbon	Entry-level road carbon
Construction	Lay-up optimised for large-section aero tubes	3D moulding, fewer fibre overlaps	Same process, slightly more material
Reference bike	Frame 1,522 g painted + fork 410 g	Madone SLR: frame 796 g (ML) + fork 350 g	Madone SL: frame 1,054 g (ML) + fork 363 g
What it means	Stiff and durable, integrated storage and IsoSpeed	Up to 20% stronger than OCLV 800	Heavier, more affordable budget

Put simply: OCLV 800 is no compromise on a triathlon bike. The frame weighs more than a road bike frame, but the difference comes from the aero tubes and storage, and on the flat it is air resistance that decides your time.

The 37 mm rims are a smart choice for a first triathlon machine: they cut drag without turning every gust into a jolt at the bars. On the coast between Valras and Portiragnes, when the sea breeze picks up, that is real handling comfort for anyone new to the stretched-out position.

The 52/36 chainset paired with the 11-30 cassette covers the flat courses and short climbs of regional events. Ultegra Di2 shifts with the same precision whatever your hand position, and its internal BT-DN300 battery charges through the dedicated port; we check the firmware when we build the bike.

Which Speed Concept should you choose?

Model	Carbon	Drivetrain	Wheels	Weight (size)
Speed Concept SLR 7	OCLV 800	Shimano Ultegra Di2	Aeolus Pro 37	8.97 kg (M)
Speed Concept SLR 7 AXS	OCLV 800	SRAM Force AXS + power meter	Aeolus Pro 51	9.02 kg (M)
Speed Concept SLR 9	OCLV 800	Shimano Dura-Ace Di2	Aeolus RSL 51	n/a (frame 1,522 g)
Speed Concept SLR 9 AXS	OCLV 800	SRAM RED AXS + power meter	Aeolus RSL 51	n/a (frame 1,522 g)

Our take: at 8.97 kg in M, the SLR 7 is actually 50 g lighter than the SLR 7 AXS, which adds a power meter and 51 mm rims. To step up to Dura-Ace Di2 and RSL wheels, you need to go for the SLR 9.

LVR sizing advice

On a triathlon bike, size is confirmed with a bike fit: reach, extension height and saddle setback matter as much as the rider's height. The SLR seatpost comes in two offsets, 11.5 or 20 mm.

Size	S	M	L	XL
Rider height (cm)	154-167	167-175	175-186	186-198
Inseam (cm)	72-80	77-83	82-88	87-93
Cranks (mm)	160	165	165	170
Seatpost	short	tall	tall	tall

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

Your questions

A good first triathlon bike?	Yes: a top-end frame and 37 mm rims that are easy to handle.
Can I use it on club rides?	Not recommended in a group: the brakes are out of reach in the aero position.
Tyres wider than 25 mm?	Trek does not publish the maximum clearance; we can advise you in store.
Power meter included?	Not on this model; it comes as standard on the SLR 7 AXS.

The LVR Cycles verdict

The most sensible Speed Concept for getting into triathlon with a top-end frame. Its 37 mm wheels keep it reassuring in the wind, which matters when you are learning to hold the position.

Pros
+ OCLV 800 frame and KVF tubes
+ 37 mm rims easy in the wind
+ Precise, reliable Ultegra Di2

Cons
- No power meter
- Unsuitable for group rides

Why buy from LVR Cycles? In Béziers, we build your Speed Concept in our workshop, set up the extensions and saddle during a full bike fit, and look after the bike season after season.

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-5347550

Data sheet