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Carbon triathlon bike Trek Speed Concept SLR 9 AXS RED AXS serpentine 12-speed

Carbon triathlon bike Trek Speed Concept SLR 9 AXS serpentine red: RED AXS E1, RSL 51, 1,522 g frame

€11,999.00 Incl. Tax

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Trek Speed Concept SLR 9 AXS serpentine: speed and data in red

The Trek Speed Concept SLR 9 AXS comes here in Serpentine, a deep, dark red enhanced with bright red. The RED AXS E1 groupset is operated entirely wirelessly, its chainset measures your power, and the RSL 51 rims complete a build designed for time trialling. On the scales, only the frame is documented by Trek France: 1,522 g once painted, plus 410 g for the fork.

Technical specifications

Frame	OCLV Series 800 carbon, KVF tubes, IsoSpeed, T47 threaded bottom bracket, integrated Bento box and down tube storage
Fork	Speed Concept full-foil carbon, integrated brake calliper and stem
Drivetrain	SRAM RED AXS E1 wireless 2x12, 48/35 DUB chainset with power meter, XG-1290 10-33 cassette
Brakes	SRAM hydraulic disc brakes, Paceline X Centerlock 160 mm rotors
Wheels / tyres	Bontrager Aeolus RSL 51 carbon / Bontrager R4 320 700x25 mm
Cockpit	Speed Concept mid-rise bar/stem with adjustable extensions
Saddle / seatpost	Bontrager Hilo Pro carbon / Speed Concept SLR seatpost, 11.5 or 20 mm offset
Weight	Complete weight not published by Trek France; frame 1,522 g (painted), fork 410 g

At a glance

✓ OCLV 800 carbon frame, IsoSpeed	✓ Wireless SRAM RED AXS E1
✓ Chainset power meter	✓ Aeolus RSL 51 carbon wheels
✓ Bento box, integrated hydration	✓ Frame 1,522 g, fork 410 g

Who is it for?

For the time trial rouleur and the non-drafting short-distance triathlete who want the most accomplished bike in the range. It is aimed at the racer who analyses their power data after every effort to improve.

The LVR workshop view

OCLV carbon, Trek's signature. Developed by Trek in the early 1990s, OCLV involves pressing and heating the carbon layers until every air bubble is driven out. The Speed Concept SLR 9 AXS, the best-equipped version in the range, nevertheless shares the same OCLV Series 800 frame as the SLR 7: moving up the range means a better drivetrain and wheels. 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

The key point: the top-end Speed Concept doesn't change carbon, and that makes sense. On a triathlon course, aerodynamic drag matters far more than frame weight; the extra cost of the SLR 9 AXS goes into RED AXS and RSL rims.

In a time trial, the integrated power meter lets you pace your start precisely and keep something in reserve for the end of the course. The cockpit with no derailleur cables makes it easier to adjust the extension height, which we fine-tune over successive sessions.

Trek offers two possible crank lengths in M, L and XL: the longer one for short, powerful efforts, the shorter one to spare the hips in triathlon. On a course exposed to the tramontane, consistent power matters more than the speed on the display.

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: no other Speed Concept combines RED AXS E1 with an integrated power meter and RSL rims. The SLR 9 with Dura-Ace Di2 will suit Shimano loyalists, without a power meter as standard.

LVR sizing advice

A triathlon position is built around the pelvis and forearms: if you are between two sizes, we compare reach and extension height during the bike fit before deciding.

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 or 170	165 or 170	170 or 172.5
Seatpost	short	tall	tall	tall

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

Your questions

Suitable for time trials?	Yes, it is designed for time trials as well as triathlon.
Complete weight published?	Not by Trek France; frame 1,522 g and fork 410 g.
Two crank lengths?	Yes in M, L and XL; we choose with you.
Recharging the AXS batteries?	Yes, SRAM charger supplied; recharge the day before races.

The LVR Cycles verdict

The most complete Speed Concept, in a deep red worthy of a race bike. For the rouleur who wants speed and data with no compromise.

Pros
+ RED AXS E1 and integrated power meter
+ Cockpit with no derailleur cables
+ Refined serpentine red

Cons
- Complete weight not published
- Reserved for racing use

Why buy from LVR Cycles? As a Trek retailer in Béziers, we choose the crank with you, set up your time trial position and look after your RED AXS drivetrain all 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-5347602

Data sheet