Trek RSL Aero Kit - White Grey
Trek RSL Aero Kit - White Grey - One size / White is backordered and will ship as soon as it is back in stock.
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Installment Payments
PayPal
The PayPal service allows you to pay for online purchases with just a few clicks, in a completely free and secure way. After selecting this payment method, you will be redirected to the dedicated page where you can enter your PayPal account details (if you do not have an account, you can sign up for free or proceed directly with the payment). Once the process is complete, you will receive an email confirmation of the successful payment and order receipt.
- Transaction fee: free
- Settlement time: instant
With PayPal, you can also pay in 3 convenient interest-free installments.
PLEASE NOTE: the maximum amount eligible for installments per single order is €2,000
Klarna
- Pay in 3 interest-free installments.
- Pay with Visa, Mastercard, Amex, Postepay and major Italian prepaid cards.
- Klarna is available in: Austria, Belgium, Finland, France, Germany, Greece, Ireland, Italy, Netherlands, Portugal, Spain.
PLEASE NOTE: the maximum amount eligible for installments per single order is €3,000
For more information about Klarna: https://www.klarna.com/international/
Scalapay
- Pay in 3 interest-free installments.
- Pay with Visa, Mastercard, Amex, Postepay and major Italian prepaid cards.
- Create a Scalapay account in just 2 minutes – registration is free and approval is immediate.
- Receive your order immediately and split the total into 3 convenient monthly installments, interest-free.
- Scalapay is available in: Italy, Belgium, Germany, Spain, France, Netherlands, Austria, Portugal, Finland.
PLEASE NOTE: the maximum amount eligible for installments per single order is €1,000
- If you purchase with Scalapay, you will receive your order immediately and pay in 3 installments. Please note that the installments will be assigned to Incremento SPV S.r.l., related parties and their assignees, and that you authorize such assignment.
Support
In case of issues with the financing method, overdue installments, errors during account creation or payment method changes, please contact SCALAPAY support.
Heylight
- Pay in 3, 4, 6 or 9 interest-free installments.
- Once you select Heylight as your payment method, you will be redirected to the financial provider’s page where you will be asked to enter your personal details and upload certain documents to verify your creditworthiness.
- The order will be considered confirmed only after Heylight approves the financing request.
- Heylight is available in Italy only.
PLEASE NOTE: the maximum amount eligible for installments per single order is €5,000
For more information about Heylight: https://heylight.com/en
Product details
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.
Reviews & Questions (0)
Reviews & Questions (0)
Shipping & delivery times
Shipping & 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 & support
Returns & support
- You can return your order within 60 days of purchase.
- Returns are eligible for a refund only: size exchanges are not available.
- You will receive your refund within 15 business days after we receive and inspect the item.
- Returns are FREE in Italy. For other countries, return shipping is at the customer’s expense.
- For returns from Germany and Austria, €6.90 will be deducted from the refund.
- For returns from Spain and France, €9.90 will be deducted from the refund.
- For other countries, the cost varies depending on the selected carrier. Shipping is entirely at the customer’s expense.
- Used or damaged items cannot be refunded.
- All4cycling will check the condition of the returned item before issuing a refund.
- If the original packaging or the tags/labels are missing, 20% of the item value will be withheld.
- Returns without an order reference will not be accepted.
- The refund will be issued using the same payment method used for the order. If you prefer a different method, write it in the notes when submitting your return request.
- If you paid by cash on delivery, please include your IBAN in the return notes to receive your refund.
FOR A SAFE RETURN
- Ship using proper packaging (box or mailer) that protects the item.
- Keep the original packaging and place it inside an outer package for shipping.
- Do not remove tags/labels and keep the original packaging.
- Avoid perfumes or deodorants when trying on items you might return.
- Use a trackable shipment.
SHIPPING COSTS
| Italy | FREE return at Post Office branches and Poste Italiane pickup points |
| Germany & Austria | Fixed cost €6.90 with DHL courier |
| Spain & France | Fixed cost €9.90 with DHL courier |
| Other Countries | Variable cost depending on the selected carrier (chosen by the customer) |


