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The Madone SL 5 Gen 8 is a lightweight aero road bike that brings elite racing tech to a lower price point.
The Madone SL 5 Gen 8 is a lightweight aero road bike that brings elite racing tech to a lower price point.
Trek

Trek Madone SL 5 Gen 8 Road Bike In Hex Blue

£3,250.00
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Hassle free returns

Thank you for shopping with us. We strive to provide you with the best products and services. If, for any reason, you are not completely satisfied with your purchase, we offer a return and refund policy subject to the following terms and conditions:

  1. Returns Accepted:

    • We accept returns within 30 days from the date of purchase.
    • To be eligible for a return, the item must be unused, in its original condition, and in the original packaging.
    • Proof of purchase, such as an order number and receipt, is required for all returns.
  2. Return Shipping:

    • Customers are responsible for arranging and covering the cost of return shipping.
    • We recommend using a trackable shipping method to ensure that the returned item reaches us safely.
  3. Restocking Fees:

    • A 10% restocking fee will be applied to all returned bikes and all items that are returned but not faulty. This does not apply to clothing.
    • This fee covers the cost of inspecting, repackaging, and restocking the item for future sale.
  4. Final Sale Items:

    • Please note that final sale items are not eligible for return or refund.
    • Final sale items are clearly marked as such on the product page or during the checkout process.
  5. Refunds:

    • Once your return is received and inspected, we will send you an email notification to inform you of the approval or rejection of your refund.
    • If your return is approved, the refund will be processed to the original payment method used during the purchase.
    • Please allow for a reasonable processing time for the refund to be reflected in your account, depending on your payment provider.
  6. Damaged or Defective Items:

    • In the rare event that you receive a damaged or defective item, please contact our customer support within 48 hours of receiving the product.
    • We may require photo evidence of the damage or defect to facilitate the return process.
  7. Delivered Bicycles
    • All bicycles shipped from us are inspected before they are boxed. However, due to the nature of packaging the bike into a box, some minor assembly will be required. This assembly is recommended to be conducted by a certified mechanic. If the bike is not checked by a qualified mechanic then your warranty may not be valid.

Please note that this return and refund policy applies only to purchases made directly from our online store. For products purchased through third-party retailers or other channels, their respective return policies and procedures may apply.

We reserve the right to update or modify this return and refund policy at any time without prior notice. It is your responsibility to review and understand the terms and conditions outlined here before making a purchase.

If you have any further questions or require assistance regarding returns or refunds, please contact our customer support, and we will be happy to assist you.

Trek Madone SL 5 Gen 8 Road Bike In Hex Blue

Season:2025

Brand:Trek

Code:46218BLU

The Madone SL 5 Gen 8 is a lightweight aero road bike that brings elite racing tech to a lower price point.

It offers similar aero benefits to the pricier Madone SLR Gen 8, but with a more economical OCLV 500 Carbon lay-up and two-piece cockpit with hidden cable routing. It's built to race, with geometry that keeps you quick on the sprints yet in control on fast descents. A Shimano 105 group set keeps the price down while still delivering clean mechanical shifting you can trust.

It's right for you if...You want a featherweight road race bike without top-end race pricing. You're up for racing, club rides or solo spins up winding canyons, and don't want to compromise between climbing efficiency and aerodynamics. You're happy with more economical components that help you get on your dream bike faster.

The tech you get - An ultra-light OCLV 500 Carbon frame with aero tubing and IsoFlow comfort technology. A 2x12 Shimano 105 group set that delivers clean mechanical shifts without the faff of electronic group sets. Tubeless wheels that help fight punctures while reducing rolling resistance, and hydraulic disc brakes.

The final word - The Madone SL 5 Gen 8 is the perfect bike for someone looking for superbike performance at a lower price point. It offers the same frame tech as its SLR sibling, like aero tube shaping and lightweight IsoFlow comfort tech, but with a more economical build that leaves budget to spare for race entry fees and bike trips.

Features:
  • The Revolutionary Full System Foil aero tube shapes redefine what fast looks like and help optimise aerodynamics around the whole bike
  • A more economical 500 Series OCLV Carbon frame and new tube shaping shave weight where it matters most to help you fly up climbs
  • You get clean and reliable shifting without breaking the bank with Shimano's workhorse group set – 105
  • Lightweight, race-focused IsoFlow comfort tech helps you ride stronger longer without sacrificing weight or aerodynamics
Technical Information
  • Frame
    500 Series OCLV Carbon, Full System Foil tube shaping, IsoFlow seat tube, RCS Headset System, electronic or mechanical routing, removable aero chain keeper, T47 BB, flat mount disc, UDH, 142x12 mm thru axle
  • Fork
    Madone Gen 8 full carbon, tapered carbon steerer, internal brake routing, flat mount disc, 12x100mm chamfered thru axle
  • Wheel front
    Bontrager Paradigm SL, Tubeless Ready, 21 mm rim width, 100x12 mm thru axle
  • Wheel rear
    Bontrager Paradigm SL, Tubeless Ready, 21 mm rim width, 142x12 mm thru axle
  • Hub front
    Bontrager alloy, sealed bearing, CenterLock disc, 100x12 mm thru axle
  • Skewer front
    Bontrager Switch chamfered thru axle, removable lever
  • Hub rear
    Bontrager alloy, sealed bearing, CenterLock disc, Shimano 11-speed freehub, 142x12 mm thru axle
  • Skewer rear
    Bontrager Switch chamfered thru axle, removable lever
  • Rim
    Bontrager Paradigm SL, Tubeless Ready, 24-hole, 21 mm width, Presta valve
  • Spokes
    14 g stainless steel, black
  • Tyre
    Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x28 mm
  • Max tyre size
    32 mm (as measured, see manual for details)
  • Shifter
    Shimano 105 R7120, 12-speed
  • Front derailleur
    Shimano 105 R7100, braze-on, down swing
  • Rear derailleur
    Shimano 105 R7100, 36T max cog
  • *Crank
  • Size: XS, S
    Shimano 105 R7100, 50/34, 165 mm length
  • Size: M
    Shimano 105 R7100, 50/34, 170 mm length
  • Size: ML, L
    Shimano 105 R7100, 50/34, 172.5 mm length
  • Size: XL
    Shimano 105 R7100, 50/34, 175 mm length
  • Bottom bracket
    Praxis, T47 threaded, internal bearing
  • Cassette
    Shimano 105 7101, 11-34, 12-speed
  • Chain
    Shimano SLX M7100, 12-speed
  • Max. chainring size
    1x: 54T, 2x: 56/43
  • *Saddle
  • Size: XS, S
    Bontrager Aeolus Comp, steel rails, 155 mm width
  • Size: M, ML, L, XL
    Bontrager Aeolus Comp, steel rails, 145 mm width
  • *Seatpost
  • Size: XS, S, M
    Madone aero carbon seat post, 0 mm offset, short length
  • Size: ML, L, XL
    Madone aero carbon seat post, 0 mm offset, long length
  • *Handlebar
  • Size: XS
    Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop, 36 cm control width, 40 cm drop width
  • Size: S, M
    Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop, 38 cm control width, 42 cm drop width
  • Size: ML, L
    Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop, 40 cm control width, 44 cm drop width
  • Size: XL
    Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop, 42 cm control width, 46 cm drop width
  • *Stem
  • Size: XS
    Trek RCS Pro, -7-degree, 80 mm length
  • Size: S, M
    Trek RCS Pro, -7-degree, 90 mm length
  • Size: ML, L
    Trek RCS Pro, -7-degree, 100 mm length
  • Size: XL
    Trek RCS Pro, -7-degree, 110 mm length
  • Brake rotor
    Shimano RT70, CentreLock, 160 mm
  • Rotor size
    Max brake rotor sizes: 180 mm front, 160 mm rear
  • Weight
    ML - 8.70 kg / 19.19 lbs (with tubes)
  • Weight limit
    This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 125 kg (275 lb).
Sizing Information
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