AERO BTS PRO SYSTEM

STOP LOSING WATTS TO DRAG

A saddle-specific carbon aero mount that hugs your bottles into a tighter profile — less exposed surface, a smaller wake, and up to 8 W faster than no BTS system, 1–4 W faster than competitor BTS systems. Engineered for marginal gains, verified by data.

Aero BTS PRO system

THE NUMBERS

LAB-TESTED, NOT MARKETED

8W

Saved versus riding with no bottles at all — up to 4W faster than the next-best competitor BTS with two bottles.

80MM

Fore-aft adjustability in bottle positioning from the saddle-specific carbon-tube build.

6 MIN

Average install time — no proprietary tools or drilling required.

ENGINEERED DETAILS

BUILT AROUND THREE MARGINAL GAINS

Every element of the Aero BTS PRO earns its place. Here's how the mounting hardware, saddle interface, and bottle integration work together to shave watts.

01

WIDE V-FORMATION

Competitor BTS systems sit with bottles close together, parallel to each other, behind the saddle. PRO widens that relative position by placing them in a V — so the bottles fill more of the wake instead of leaving its outer edges empty: up to 8W faster than riding with no bottles at all.¹

02

BESPOKE SADDLE FIT

Like other BTS systems, PRO's mount is saddle-specific — moulded to match your exact saddle model for a precise fit and an easy, secure install. It's reinforced around a carbon fiber tube, so that fit, and the V-formation, stays stiff and stays put, ride after ride.

03

STORAGE

The 900 ml shell is shaped to hug the two bottles, with the extra storage volume sitting in a single volume sealed under a close-fitting lid. That's enough for a full spares kit — inner tube, CO2, lever, multitool — the storage most triathletes are currently taping to the frame.

Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system
Aero BTS PRO system

AERO BTS PRO SYSTEM

Aero BTS PRO system

2.632,00 kr

Our most refined integrated storage system — reviewed and approved by World Triathlon and Ironman. Up to 8 W faster than no BTS system, 1–4 W faster than competitor BTS systems, with 900 ml of integrated storage under a close-fitting lid. Saddle-specific carbon-tube build, ~350 g, holds 2 × 1000 ml bottles.

SADDLE MODEL

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Free shipping over €150

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30-day returns

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2-year warranty

MEASURED RESULTS

TRUSTED BY RIDERS WHO MEASURE EVERYTHING

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Wind tunnel logged a 6.2 W saving over my old dual-bottle setup at 45 km/h. On a 40 km TT that's real time — I took 34 seconds off my previous course record with nothing else changed.

Marcus T.

Cat 2 Racer · 40 km TT

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Two 1000 ml bottles carried clean behind the saddle meant I skipped an aid-station stop at Ironman. The tighter shell dropped my measured drag and I held aero longer without reaching around for fluids.

Elena R.

Ironman Finisher · Full-distance tri

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At 350 g it's lighter than the loaded cages I ripped off, and my power meter confirms the watts. Over a 200 km endurance day the drag reduction and clean storage are exactly the marginal gain I was chasing.

David K.

Ultra-Endurance Rider · 200 km+

INSTALLATION & COMPATIBILITY

SIMPLE TO INSTALL. BUILT TO FIT.

Tool-free micro-adjustment gets the Aero BTS PRO dialed in minutes — no torque wrench, no shop visit. A saddle-specific carbon build and universal hardware mean it locks cleanly onto round or oval rails and standard or aero seatposts alike.

Works with both round and oval rail saddles. Verified fit across Wove V8, Prologo T-Gale TT, ISM PN3.1, Specialized Sitero, Fizik Transiro Aeris, PRO Stealth, Selle Italia Watt Superflow and more.

Under 6 minutes from box to bike. No special tools required — the tool-free clamp and pre-set hardware mean you mount, align and ride without a trip to the workshop.

Compatible with standard round and aero seatposts. The saddle-specific carbon tube keeps the profile tight against the frame for a clean, integrated line on tri and road setups alike.

Every kit ships with the carbon BTS PRO mount, complete mounting hardware and a step-by-step install guide. Just add your two 1000 ml bottles and go.

ATHLETE SPOTLIGHT

RIDDEN BY KRISTIAN HØGENHAUG

8th place, Challenge Roth 2026 — powered by the Aero BTS PRO.

8TH

Overall Finish — Roth 2026

SHOP THE BTS PRO

FAQ

QUESTIONS, ANSWERED

Everything you need to know before adding the Aero BTS PRO to your setup — fit, performance, warranty and returns, all backed by data.

Yes — despite an initial ban on launch at IM Texas, we have since gotten official approval by World Triathlon, which has also been accepted by Ironman. The AERO BTS mount is completely compliant and race legal, and has already been raced by hundreds of PRO and age-group athletes.

The BTS PRO is a saddle-specific carbon build, so fit is determined by your saddle model rather than your frame. Select your saddle at checkout — we support 12 models including Wove V8, Prologo T-Gale TT, ISM PN3.1, Specialized Sitero and PRO Stealth. It mounts to both standard round and aero seatposts.

The BTS PRO saves up to 8 W versus riding with no BTS system, and 1–4 W versus competitor BTS systems. Savings depend on speed and yaw, but the close-fitting shell reduces exposed surface area and wake versus loose bottle setups. Figures are velodrome-tested and reviewed by World Triathlon and Ironman.

Yes — the mount is engineered for both round and oval rails using universal hardware. Because each build is saddle-specific, the clamp geometry is matched to your chosen model, so there's no guesswork or shimming required. If your saddle isn't listed, contact us before ordering and we'll confirm compatibility.

The BTS PRO carbon structure and hardware are covered by a 2-year warranty against manufacturing and material defects. Normal wear on bottle contact surfaces is excluded. Register your product after install to activate coverage and keep your order confirmation as proof of purchase.

Orders are dispatched from our EU warehouse within 1–2 business days. Delivery is typically 2–4 business days within the EU and 5–8 business days internationally, tracked end to end. Each unit is built to your selected saddle model, so please double-check your choice before ordering.

Yes. You have 30 days to return an unused unit in its original condition and packaging for a full refund. Because each build is saddle-specific, confirm your saddle model before ordering to avoid a fit mismatch — but if it still isn't right, we'll help you exchange or return it.

LIMITED PRODUCTION RUN

STOP LEAVING WATTS ON THE TABLE

Velodrome-tested drag reduction, a saddle-specific carbon build under 350 g, and a bolt-on install in minutes. Reviewed and approved by World Triathlon and Ironman — every marginal gain, engineered in.

SHOP AERO BTS PRO — €349

Free EU shipping · 30-day returns · 2-year warranty