2025 Trek Madone SL 5 Gen 8 - Hex Blue

R 59,900.00 ZAR
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Shop the 2025 Trek Madone SL 5 Gen 8 aero road bike in Hex Blue for sale in South Africa at Biket — the official Trek Bikes online store. Lightweight carbon race bike with aerodynamic IsoFlow frame design and Shimano 105 Di2 electronic drivetrain for speed and efficiency. Fast free nationwide delivery in South Africa.

OVERVIEW

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.

Why you'll love it

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.

SPECS

*Please note – spec applies to all sizes unless listed separately

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

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).

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: XS, S
Shimano RS520, 50/34, 165 mm length
Size: M
Shimano 105 R7100, 50/34, 170 mm length
Size: M
Shimano RS520, 50/34, 170 mm length
Size: ML, L
Shimano 105 R7100, 50/34, 172.5 mm length
Size: ML, L
Shimano RS520, 50/34, 172.5 mm length
Size: XL
Shimano 105 R7100, 50/34, 175 mm length
Size: XL
Shimano RS520, 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

Hub front
Bontrager alloy, sealed bearing, CenterLock disc, 100x12 mm thru axle
Skewer front
Bontrager Switch chamfered thru axle
Hub rear
Bontrager alloy, sealed bearing, CentreLock 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)

*Saddle
Size: XS, S
Bontrager Aeolus Comp, steel rails, 155 mm width
Size: XS, S, M, ML, L, XL
Verse Short, steel rails, 145 mm width
Size: M, ML, L, XL
Bontrager Aeolus Comp, steel rails, 145 mm width
*Seatpost
Size: XS, S, M, XL
Madone aero carbon seat post, 0 mm offset, short length
Size: ML, L
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
Handlebar tape
Trek EcoTack, black
*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

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.

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