Trek Madone SL 5 Gen 8 — Road Bike

Frame: 500 Series OCLV Carbon frame with Full System Foil tube shaping, IsoFlow seat tube, RCS Headset System, T47 bottom bracket, and 142x12mm thru-axle, paired with a Madone Gen 8 full carbon fork

Drivetrain: Shimano 105 R7120 12-speed mechanical groupset with an R7100 crankset (50/34T) and 11-34t cassette

Brakes: Shimano 105 hydraulic disc brakes, flat mount, Shimano CL700 centerlock rotors

Wheels / Tyres: Bontrager Paradigm 23 tubeless-ready wheels with Bontrager Aeolus Pro 700x28mm tubeless-ready tyres

Cockpit: Trek RCS Pro stem (size-specific angle and length), Bontrager Comp alloy handlebar, and a Madone aero carbon seatpost

Weight: 8.64 kg (19.05 lb), size ML, with tubes

Standout feature: Full System Foil aero tube shaping and an IsoFlow seat tube design bring Madone-level aerodynamics to a more accessible alloy-cockpit build

The Madone SL 5 Gen 8 is a great fit for riders who want genuine aero performance and race-bike handling for climbs like Myra Canyon or long days out on Okanagan valley routes, without stepping up to a flagship-priced build. Its mechanical Shimano 105 groupset and proven aero frame shape make it especially appealing to riders moving up from an entry-level road bike who want real speed gains.

Our team at Fresh Air will help you find the right fit in-store at both Kelowna locations. Stop by to work with one of our experienced staff members, or call 250-763-3425.

Getting your Madone SL 5 dialled in starts with proper fit — our team will set your saddle height, fore-aft position, and cockpit reach to match your riding style, and can help with cleat alignment if you're running clipless pedals. We'll also set tire pressure appropriate for the tubeless-ready Bontrager Aeolus Pro 700x28mm tyres based on your weight and the roads you're riding. Drop into Fresh Air Pandosy (555 Groves Ave) or Fresh Air Dilworth (1656 Dilworth Drive), or book an appointment online.

Q1: What size Trek Madone SL 5 Gen 8 do I need?
Trek offers the Madone SL 5 Gen 8 in six sizes, XS through XL, and sizing is based on your height, reach, and riding position. Check Trek's geometry chart for exact measurements, or come into either Fresh Air location and our team will get you set up on the right frame size.

Q2: Is the Madone SL 5 Gen 8 right for Okanagan valley road routes?
Yes — with an aero-optimized carbon frame, tubeless-ready 700x28mm tyres, and up to 32mm tyre clearance, the Madone SL 5 is well suited to long valley routes, climbs like Myra Canyon, and local gran fondos.

Q3: What groupset is on the Madone SL 5 Gen 8 and is it upgradeable?
The Madone SL 5 comes equipped with a full Shimano 105 12-speed mechanical groupset. Components like the wheels and cockpit can be upgraded down the road — our team can walk you through options in-store.

Frame: 500 Series OCLV Carbon, Full System Foil tube shaping, IsoFlow seat tube, RCS Headset System, electronic or mechanical routing, removable aero chainkeeper, T47 BB, flat mount disc, UDH, 142x12mm thru axle

Fork: Madone Gen 8 full carbon, tapered carbon steerer, internal brake routing, flat mount disc, 12x100mm chamfered thru axle

Hub Front: Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle

Hub Front: Bontrager Switch chamfered thru axle

Hub Rear: Bontrager alloy, sealed bearing, centerlock disc, Shimano 11-speed freehub, 142x12mm thru axle

Skewer Rear: Bontrager Switch chamfered thru axle, removable lever

Rim: Bontrager Paradigm 23, Tubeless Ready, 24-hole, 23mm width, Presta valve

Tire: Bontrager Aeolus Pro, Tubeless Ready, aramid bead, 120tpi, 700x28mm

Tire Part: Bontrager TLR sealant, 180 ml/6 oz

Max Tire Size: 32mm (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, 165mm length

Size: M, ML Shimano 105 R7100, 50/34, 170mm length

Size: L, XL Shimano 105 R7100, 50/34, 172.5mm 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