Trek Madone SL 5 Shimano 105 Gen 8 2025
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- Assembled and adjusted by our technicians before shipping
- Updated on : 06/08/2026
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The Trek Madone SL 5 Gen 8 embodies the perfect meeting of speed, cutting‑edge technology and accessibility. Designed to deliver the sensations of a race bike while remaining more affordable than its SLR sibling, it offers exceptional aerodynamics, impressive stiffness and surprising comfort for a performance‑oriented bike. It’s the ideal companion for ambitious riders who want to shine in racing without blowing their budget.
This 8th‑generation Madone adopts Full System Foil tubing, an innovation that completely redefines aerodynamics by optimizing every surface of the frame. Coupled with OCLV Series 500 carbon—more economical but still extremely capable—it strikes an ideal balance of lightness, speed and stiffness. IsoFlow technology, a hallmark of this generation, creates a compliant zone at the seat tube to absorb vibrations while reducing structure weight. The result is a bike that’s more comfortable, more responsive and more efficient on accelerations as well as long climbs. Its race geometry, derived from the Madone SLR, provides an aggressive yet controlled position, perfect for sprinting and descending with surgical precision.
The two‑piece integrated cockpit keeps a clean line while making adjustments easier than the one‑piece setups on higher models. The threaded T47 bottom bracket delivers stiffness and durability, and UDH compatibility greatly simplifies derailleur hanger replacement in case of an incident. Every detail is designed to offer a fast, functional and intuitive bike, perfectly suited to riders who want to improve and perform.
On the drivetrain side, the Madone SL 5 relies on the Shimano 105 mechanical 12‑speed groupset. Durable, precise and reliable, it offers crisp, fast and consistent shifts without unnecessary extra cost. Shimano 105 hydraulic disc brakes provide stable, modulable stopping power, reassuring both in racing and on training rides. Bontrager Paradigm SL wheels, tubeless‑ready, are light, stiff and speed‑optimized, while Bontrager R1 Hard‑Case Lite 28 mm tires deliver an excellent compromise of comfort, efficiency and puncture resistance. The Bontrager cockpit, Madone aero seatpost and Aeolus Comp saddle complete a coherent, high‑performing and enjoyable package to ride.
The Trek Madone SL 5 Gen 8 is the ideal choice for riders seeking a fast, modern road bike that’s ready to perform—capable of delivering WorldTour‑level sensations at a much more accessible price. Whether you want to gain speed, improve your times or simply enjoy riding an exceptional machine, it will accompany you through every challenge.
Treat yourself to the Trek Madone SL 5 Gen 8 and take a leap forward in speed, aerodynamics and performance, all with an outstanding value for money.
Technical Information
| Frame | Carbon: OCLV Carbon Series 500, Full System Foil tube shapes, IsoFlow seat tube, RCS headset, electronic or mechanical routing, removable aerodynamic chainstay guard, T47 bottom bracket, flat mount disc brakes, Universal Derailleur Hanger (UDH), thru‑axle 142 x 12 mm |
| Fork | Carbon: Madone Gen 8 full carbon, tapered carbon steerer, internal brake routing, flat mount disc, 12x100 mm chamfered thru‑axle |
| Shifter | Shimano 105 R7120, 12‑speed |
| Front Derailleur | Shimano 105 R7100, braze‑on, down‑swing, 2x12 speed |
| Rear Derailleur | Shimano 105 R7100, 12‑speed |
| Cassette | Shimano 105 7101, 11‑34T, 12‑speed |
| Chain | Shimano SLX M7100, 12‑speed |
| Crankset | Shimano 105 R7100, 50‑34T, DUB |
| Bottom Bracket | Praxis, T47 threaded, internal bearings |
| Brakes | Shimano 105, Shimano RT70 rotors, Centerlock, 160/160 mm |
| Wheels | Bontrager Paradigm SL, tubeless‑ready, rim width 21 mm, 12x100 / 12x142 mm, HG freehub |
| Tires | Bontrager R1 Hard‑Case Lite, wire bead, 60 tpi, 700x28 mm |
| Handlebar | Bontrager Comp, alloy, 31.8 mm clamp, 80 mm reach, 121 mm drop |
| Stem | Trek RCS Pro, -7° |
| Saddle | Bontrager Aeolus Comp, steel rails |
| Seatpost | Madone aero seatpost, 0 mm setback |
| Weight | ML - 8.70 kg |
| Max weight | This bike has a maximum total weight limit (including the weight of the bike, the rider and any luggage) of 125 kg (275 lbs). |
Geometry
| Frame size | XS | S | M | ML | L | XL |
| Seat tube (mm) | 404 | 440 | 476 | 512 | 548 | 609 |
| Top tube (mm) | 512 | 521 | 534 | 543 | 559 | 574 |
| Chainstay length (mm) | 410 | 410 | 410 | 410 | 411 | 412 |
| Head tube (mm) | 100 | 121 | 136 | 150 | 172 | 201 |
| Head angle (°) | 71.6 | 72.2 | 72.9 | 73.5 | 73.8 | 73.9 |
| Seat tube angle (°) | 73.8 | 73.8 | 73.6 | 73.4 | 73.4 | 73.4 |
| Wheelbase (mm) | 971 | 976 | 981 | 980 | 990 | 1007 |
| Stack (mm) | 507 | 530 | 546 | 562 | 582 | 610 |
| Reach (mm) | 370 | 378 | 384 | 389 | 394 | 402 |
| Crank length (mm) | 165 | 165 | 170 | 172.5 | 172.5 | 175 |
| Saddle width (mm) | 155 | 155 | 145 | 145 | 145 | 145 |
| Handlebar width (mm) | 400 | 420 | 420 | 440 | 440 | 460 |
| Stem length (mm) | 80 | 90 | 90 | 100 | 100 | 110 |





