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Carbon aero road bike Trek Madone SLR 9 AXS RED serpentine 12-speed

Carbon aero road bike Trek Madone SLR 9 AXS serpentine: OCLV 900 frame, RED AXS E1, 7.00 kg in ML

€11,999.00 Incl. Tax

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Trek Madone SLR 9 AXS serpentine: a climber that no longer holds you back on the flat

For anyone coming from the Émonda, the Trek Madone SLR 9 AXS Gen 8 is a pleasant surprise: at 7.00 kg in size ML, it climbs just as well while staying fast on the flat. Its 796 g OCLV Series 900 frame comes with SRAM RED AXS E1 2x12 and Aeolus RSL 51 wheels. The Serpentine paintwork pairs a dark red that is almost burgundy with a brighter, more luminous red.

Technical specifications

Frame	OCLV Series 900 carbon, Full System Foil tubes, IsoFlow, RCS headset, T47 threaded bottom bracket, UDH hanger, tyres up to 32 mm
Fork	Madone Gen 8 full carbon, carbon tapered steerer, Flat Mount, 12x100 mm thru axle
Drivetrain	SRAM RED AXS E1 wireless 2x12, 48/35 DUB chainset with power meter, XG-1290 10-33 cassette
Brakes	Flat Mount hydraulic disc brakes, SRAM Paceline X 160 mm Centerlock rotors
Wheels / tyres	Bontrager Aeolus RSL 51 carbon / Bontrager Aeolus RSL RD 700x28 mm, cotton casing
Cockpit	Trek Aero RSL one-piece bar/stem in OCLV carbon, Race Fit, width depends on size
Saddle / seatpost	Bontrager Aeolus RSL carbon rails 145 mm / Madone aero seatpost, 0 mm offset
Weight	7.00 kg in size ML (Trek figure)
Max. weight	125 kg (rider, bike and luggage)

At a glance

✓ OCLV 900 carbon frame and fork	✓ Wireless SRAM RED AXS E1 2x12
✓ Chainset power meter	✓ Aeolus RSL 51 carbon wheels
✓ Aero RSL one-piece bar/stem	✓ 7.00 kg in size ML

Who is it for?

For the lightweight climber who used to choose a round-tubed bike for the mountains, the puncheur who loves short, steep climbs, or the rider who lives at the foot of the hills and alternates climbs and fast runs home through the valley every week.

The LVR workshop view

OCLV carbon, Trek's signature. On this Madone SLR 9 AXS, Trek uses OCLV Series 900, the pinnacle of carbon expertise that began in 1992. The principle never changes: each stack of fibres goes into a heated press to eliminate the air bubbles that would weaken the structure. The 3D moulding specific to Series 900 limits the areas where plies overlap, resulting in a painted frame of 796 g in ML and a 350 g fork. Like every OCLV frame, it benefits from the Trek lifetime warranty.

	OCLV 900 (Madone SLR)	OCLV 500 (Madone SL)	OCLV 800 (Speed Concept)
Level	Trek's most refined carbon	Entry-level road carbon	Trek's former top-end road carbon
Construction	3D moulding, reduced ply overlaps	Same process, more generous lay-up	Proven lay-up, integration comes first
Reference bike	Madone SLR: painted frame 796 g (ML), fork 350 g	Madone SL: painted frame 1,054 g (ML), fork 363 g	Speed Concept SLR: painted frame 1,522 g
What it means	271 g less than the SL on frame and fork; up to 20% stronger than OCLV 800	Same aero shapes, separate bar and stem, gentler budget	Still very high-performing, reserved for triathlon at Trek

Put simply: between a Madone SL and this SLR, the 271 g difference on the frame and fork is felt mainly on long climbs and when accelerating. The real leap of the SLR 9 AXS also lies in what it comes with: RED E1 groupset, power meter and one-piece bar/stem, three features you will not find together further down the range.

The SLR frame and fork weigh 320 g less than those of the Gen 7 Madone, with comparable aerodynamics. Out of the saddle on the steep gradients of the Caroux or towards the Col de la Croix de Mounis, that lightness shows when you accelerate, and the T47 threaded bottom bracket avoids the creaks that spoil your efforts.

On descents, the 160 mm hydraulic discs and thru axles give precise braking, while the 28 mm tyres provide reassuring grip in hairpins. We bleed the brakes and check pad wear at every service, a key point for anyone who often descends mountain passes.

Which Madone should you choose?

Model	Carbon	Drivetrain	Wheels	Weight (size)
Madone SLR 7 AXS	OCLV 900	SRAM Force AXS	Aeolus Pro 51 carbon	7.22 kg (ML)
Madone SLR 9	OCLV 900	Shimano Dura-Ace Di2	Aeolus RSL 51 carbon	7.05 kg (ML)
Madone SLR 9 AXS	OCLV 900	SRAM RED AXS E1 + power meter	Aeolus RSL 51 carbon	7.00 kg (ML)
Madone SLR 9 AXS 1x	OCLV 900	SRAM RED E1 1x12 + power meter	Aeolus RSL 37 carbon	6.40 kg (ML)

Our take: for the mountains, the 1x at 6.40 kg is tempting, but its 600 g saving costs you the 35 small chainring. The SLR 9 AXS keeps 48/35 and 10-33, which is more versatile; the SLR 7 AXS adds 220 g.

LVR sizing advice

Race geometry: between two sizes, the smaller one lowers the front end, the larger one spares your back. As the bar/stem is a single piece, changing stem length means changing the whole cockpit: it is best to get it right from the start.

Size	XS	S	M	ML	L	XL
Rider height (cm)	143-158	158-162	162-173	173-179	179-188	188-199
Inseam (cm)	67-74	74-76	76-81	81-84	84-88	88-100
Cranks (mm)	160	160	165	165	170	170
Bar width at the hoods (cm)	35	37	39	39	39	41

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

Your questions

As good a climber as the Émonda?	Just as light according to Trek, and much faster on the flat.
Do carbon wheels need maintenance?	Regular spoke checks and tubeless sealant are all it takes.
Safe on mountain descents?	Yes, 160 mm hydraulic discs and 28 mm tyres.
Can I fit an 11-36?	The rear derailleur takes a 36-tooth sprocket at most; let's discuss it in the workshop.

The LVR Cycles verdict

The Madone for climbers who no longer want to lose time on the flat. Its deep red fade is one of the most successful colourways in the range.

Pros
+ As light as a climber's bike
+ Precise braking on descents
+ Deep, luminous red

Cons
- Aggressive position for the back
- Low position on long climbs

Why buy from LVR Cycles? Based in Béziers, at the foot of the hills of the hinterland, we prepare your Madone for the mountains: brake bleeding, drivetrain adjustment and bike fit.

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-5347526

Data sheet