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Trek  |  SKU: 5324021  |  Barcode:

Trek RSL Aero Kit - White Grey

Regular price €99,95
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Product details

Trek RSL Aero Kit: aerodynamic performance for road bikes

The Trek RSL Aero kit is an innovative solution for riders seeking the highest level of aerodynamic performance in road cycling. Originally designed for the Trek Madone Gen 8, this aerodynamic hydration system has also delivered outstanding results on road bikes from other brands, thanks to Trek’s advanced aerodynamic research. The bottle and bottle cage were developed using fluid dynamics modeling technologies to reduce air resistance while riding. The system is UCI-compliant, ensuring compatibility with official competitions. Beyond performance, the kit offers versatility: the bottle cage can hold both the RSL Aero bottle and standard round bottles, adapting to different hydration needs without aerodynamic compromise.

Aerodynamic benefits and universal compatibility

Trek testing showed a gain of 1.8 watts at 35 km/h on the Madone Gen 8 model compared with standard round bottles, a significant difference for riders competing or seeking energy efficiency. This advantage was validated through Trek’s proprietary aerodynamic modeling system, which makes it possible to predict performance on any road bike. The RSL Aero bottle cage holds the bottle securely in place, eliminating vibration and unwanted movement while riding. Compatibility with standard bottles expands usage options, allowing cyclists to choose the solution best suited to their needs without giving up the system’s aerodynamic benefits.

Materials, safety, and system sustainability

The bottle cage is made from OCLV carbon, a lightweight, durable composite material that ensures long-lasting performance. At just 35 grams, the kit minimizes added weight on the bike, a crucial factor for performance. The RSL Aero bottle is USDA-approved and completely BPA- and phthalate-free, ensuring safe hydration. Both the bottle and cap are dishwasher-safe, simplifying everyday care. The kit is fully recyclable, reflecting Trek’s commitment to environmental sustainability. Installation is made easier by the inclusion of all necessary mounting components, with top access that allows quick, convenient refilling during rides.

Technical features

  • Aerodynamic gain: 1.8 watts faster at 35 km/h compared with standard round bottles.
  • Compatibility: works with RSL Aero bottles and standard round bottles.
  • Compliance: UCI-compliant for official competitions.
  • Bottle cage material: durable, lightweight OCLV carbon.
  • Weight: 35.0 grams.
  • Bottle certification: USDA approved, BPA- and phthalate-free.
  • Care: bottle and cap are dishwasher-safe.
  • Sustainability: fully recyclable.
  • Access: top-fill for quick refilling.
  • Mounting: all installation hardware included.
  • Color: Grey/white.

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Shipping and delivery times

Orders are usually shipped within 24-72 hours (1-3 days) from payment receipt. Some items may have longer shipping times (5-7 days). The specific shipping times are indicated on each product page.

FREE SHIPPING (bikes excluded) from

€ 79.00 Italy
€ 129.00 Europe, Principality of Monaco, and San Marino
€ 249.00 Australia, Canada, Japan, Switzerland, Norway

Shipping costs start from

€ 6.50 STANDARD SHIPPING in Italy with express courier

Shipping times and costs may vary depending on the delivery country, chosen service, and weight.

Shipping with InPost service

€ 5.00 Italy
€ 12.00 France, Benelux, Spain, Portugal, Poland

Bicycle shipping

Shipping costs for all bicycles are fixed as follows.

€ 39.00 Italy
€ 49.00 Europe
€ 69.00 Rest of the world

Non-EU shipping

Local VAT and any customs duties for shipments of goods to customers outside the European Union (non-EU) will be charged to the recipient and requested by the courier at the time of delivery. If the delivery is not made due to refusal to pay the customs duties (local VAT and any applicable tariffs) requested by the importing country, all costs incurred by us for the return of the goods will be deducted from the refund.

In-store pickup

All online-ordered items can be picked up at the All4cycling store in the province of Varese, Via Gianfranco Miglio 2, 21045 Gazzada Schianno (VA).

For further details, we invite you to review the terms and conditions and the privacy policy.

Returns and refunds

  • You can request a return within 60 days of delivery.
  • Start your request from the Returns and Order Cancellations page by entering your order number.
  • Within the first 14 days, you may try the product as necessary to check its features and fit.
  • From day 15 to day 60, the product must be unused, intact and complete with original packaging, labels and accessories.
  • Use beyond what is necessary may result in a reduction of the refund based on the loss in value of the product.
  • The refund is issued, after the returned item has been checked, using the same payment method used for the order.
  • If you paid by cash on delivery, please provide a valid IBAN in the return request notes.
  • Direct exchanges for size, colour or model are not available: return the item and place a new order.
  • For incorrect, damaged or defective products, please contact Customer Service before making the return.

FOR A SAFE RETURN

  • Use suitable packaging to protect the product during transport.
  • Place the product's original packaging inside an outer shipping package.
  • Do not apply adhesive tape, shipping labels or writing directly to the original packaging.
  • Return all accessories, manuals, components and any complimentary items received.
  • Do not remove tags, labels or seals unless necessary to inspect the product.
  • When trying on clothing that you may return, avoid perfume, deodorant or any use that may leave odours or marks.
  • Use a trackable shipping service and keep the shipping receipt until the return has been completed.

For full conditions, exclusions and return procedures, please see our Returns and Refunds Policy.

RETURN SHIPPING COSTS

Italy FREE return at Poste Italiane post offices and collection points, following the instructions provided
Germany & Austria Fixed cost €6.90 with DHL, deducted from the refund
Spain & France Fixed cost €9.90 with DHL, deducted from the refund
Switzerland & Liechtenstein Fixed cost €12.00 with Swiss Post, deducted from the refund
Other Countries Variable cost depending on the carrier selected, fully payable by the customer

The costs shown apply to returns made due to a change of mind. If the product is incorrect, damaged or not as described due to a cause attributable to All4cycling, the necessary return shipping costs will not be charged to the customer.