TREK MADONE SL 6 GEN 8 ROAD BIKE 2025 CRIMSON
Product Details - Trek Madone Sl 6 Gen 8 Road Bike 2025 Crimson
Product Details - Trek Madone Sl 6 Gen 8 Road Bike 2025 Crimson
The Madone SL 6 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 comfortable on the climbs and perched for the attack. A Shimano 105 Di2 electronic group set keeps the price down without sacrificing lightning-fast electronic shifting. Plus, it's topped off with carbon wheels for extra lightweight performance.
Key Features Trek Madone SL 6 Gen 8 Road Bike 2025
- 500 Series OCLV Carbon Frame: Race-worthy aerodynamics and climb crushing weight.
- Bontrager Aeolus Elite 35 Carbon Wheels: Keep weight down and performance up, so you can crush climbs and soar down descents.
-
Shimano 105 Di2: Lightning-fast shifts that stay crisp and clean thanks to Shimano.
Full Specifications
- 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
- Gear Shifters: Shimano 105 R7170, 12-speed
- Chainset: Shimano 105 R7100, 50/34, 165 - 175 mm length
- Rear Cassette: Shimano 105 7101, 11-34, 12-speed
- Chain: Shimano SLX M7100, 12-speed
- Front Derailleur: Shimano 105 R7150 Di2, braze-on, down swing
- Rear Derailleur: Shimano 105 R7150 Di2, 36T max cog
- Bottom Bracket: Praxis, T47 threaded, internal bearing
- Pedals: Not supplied
- Front Wheel: Bontrager Aeolus Elite 35, OCLV Carbon, Tubeless Ready, 35 mm rim depth, 100x12 mm thru axle
- Rear Wheel: Bontrager Aeolus Elite 35, OCLV Carbon, Tubeless Ready, 35 mm rim depth, Shimano 11/12-speed freehub, 142x12 mm thru axle
- Tyres: Bontrager R3 Hard-Case Lite, Tubeless Ready, aramid bead, 170 tpi, 700x28 mm
- Brakes: Shimano 105 Di2 12-speed, Shimano RT70 rotors, Centrelock, 160 mm
- Handlebars: Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop, 36 - 42 cm control width, 40 - 46 cm drop width
- Handlebar Tape: Bontrager Supertack Perf tape
- Stem: Trek RCS Pro, -7-degree, 80 - 110mm length
- Saddle: Bontrager Aeolus Comp, steel rails, 155 - 145 mm width
- Seatpost: Madone aero carbon seat post, 0 mm offset, short/long length
- Accessories: Charging cable included
-
Weight: ML - 8.16 kg / 17.99 lbs (with TLR sealant, no tubes)
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.
Size Guide
Size Guide

How we Build & Pack Your Bike
How we Build & Pack Your Bike
Aftercare
Aftercare
At All Terrain Cycles, we want you to ride with confidence every time. To ensure your bike or e-bike stays in peak condition, here are some essential safety and maintenance tips.
Bicycle Safety
Always wear a helmet – Safeguard against head injuries by using a properly fitted, safety-certified helmet.
Perform pre-ride checks – Before each ride, verify that brakes, tyres, and gears are in good working order.
Stay visible – Utilise lights and reflective gear when cycling in low-light conditions.
Follow road rules – Ride responsibly and remain aware of your surroundings.
Aftercare for Your New Bike Initial Check-Up (First 50-100 miles)
Gear Adjustment – New cables may stretch slightly; have a qualified mechanic check and adjust them.
Brake & Wheel Check – Inspect brakes for wear and ensure wheels are aligned properly.
Lubrication – Apply chain oil and check bolt tightness to maintain smooth performance.
Tyre Pressure – Regularly monitor to prevent flats and enhance efficiency.
Routine Maintenance (Every Few Weeks)
Chain Care – Clean and lubricate your chain to minimise wear and prolong its life.
Brake Safety – Check brake pads and responsiveness before each ride.
Tyre Inspection – Look for punctures and ensure correct air pressure.
Handlebar & Stem Alignment – Confirm they are tight and secure to prevent instability.
Frame Safety Check – Look for any signs of damage or cracks.
Professional Check-Ups
Have your bike serviced at least once a year, or more frequently if you ride often.
Aftercare for Your New Electric Bicycle (e-Bike) Initial Check-Up (First 50-100 miles)
Battery Care – Fully charge your battery (if required) before the first ride and store it in a dry, moderate-temperature environment.
Avoid Overcharging – Unplug the charger once fully charged to extend battery life.
Routine e-Bike Maintenance (Every Few Weeks)
Motor Inspection – Listen for unusual noises and ensure smooth operation.
Battery & Connection Checks – Inspect cables and connectors for dirt, moisture, or damage.
Seasonal e-Bike Maintenance
Check Electrical Components – Ensure wires and connections are clean and secure.
Professional Servicing – Have your e-bike inspected at least once a year or every 500-1000 miles for optimal performance.
By following these aftercare guidelines, you’ll help ensure that your bicycle runs smoothly, lasts longer, and remains a joy to ride. Stay safe and enjoy the ride!
If you have any problems or concerns: Contact All Terrain Customer Services on 01274 588488 or email sales@allterraincycles.co.uk
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Product Description
Product Description
The Madone SL 6 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 comfortable on the climbs and perched for the attack. A Shimano 105 Di2 electronic group set keeps the price down without sacrificing lightning-fast electronic shifting. Plus, it's topped off with carbon wheels for extra lightweight performance.
Key Features Trek Madone SL 6 Gen 8 Road Bike 2025
- 500 Series OCLV Carbon Frame: Race-worthy aerodynamics and climb crushing weight.
- Bontrager Aeolus Elite 35 Carbon Wheels: Keep weight down and performance up, so you can crush climbs and soar down descents.
-
Shimano 105 Di2: Lightning-fast shifts that stay crisp and clean thanks to Shimano.
Full Specifications
- 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
- Gear Shifters: Shimano 105 R7170, 12-speed
- Chainset: Shimano 105 R7100, 50/34, 165 - 175 mm length
- Rear Cassette: Shimano 105 7101, 11-34, 12-speed
- Chain: Shimano SLX M7100, 12-speed
- Front Derailleur: Shimano 105 R7150 Di2, braze-on, down swing
- Rear Derailleur: Shimano 105 R7150 Di2, 36T max cog
- Bottom Bracket: Praxis, T47 threaded, internal bearing
- Pedals: Not supplied
- Front Wheel: Bontrager Aeolus Elite 35, OCLV Carbon, Tubeless Ready, 35 mm rim depth, 100x12 mm thru axle
- Rear Wheel: Bontrager Aeolus Elite 35, OCLV Carbon, Tubeless Ready, 35 mm rim depth, Shimano 11/12-speed freehub, 142x12 mm thru axle
- Tyres: Bontrager R3 Hard-Case Lite, Tubeless Ready, aramid bead, 170 tpi, 700x28 mm
- Brakes: Shimano 105 Di2 12-speed, Shimano RT70 rotors, Centrelock, 160 mm
- Handlebars: Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop, 36 - 42 cm control width, 40 - 46 cm drop width
- Handlebar Tape: Bontrager Supertack Perf tape
- Stem: Trek RCS Pro, -7-degree, 80 - 110mm length
- Saddle: Bontrager Aeolus Comp, steel rails, 155 - 145 mm width
- Seatpost: Madone aero carbon seat post, 0 mm offset, short/long length
- Accessories: Charging cable included
-
Weight: ML - 8.16 kg / 17.99 lbs (with TLR sealant, no tubes)
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.
Size Guide
Size Guide

How to Build Your Bike
How to Build Your Bike
Aftercare
Aftercare
At All Terrain Cycles, we want you to ride with confidence every time. To ensure your bike or e-bike stays in peak condition, here are some essential safety and maintenance tips.
Bicycle Safety
Always wear a helmet – Safeguard against head injuries by using a properly fitted, safety-certified helmet.
Perform pre-ride checks – Before each ride, verify that brakes, tyres, and gears are in good working order.
Stay visible – Utilise lights and reflective gear when cycling in low-light conditions.
Follow road rules – Ride responsibly and remain aware of your surroundings.
Aftercare for Your New Bike Initial Check-Up (First 50-100 miles)
Gear Adjustment – New cables may stretch slightly; have a qualified mechanic check and adjust them.
Brake & Wheel Check – Inspect brakes for wear and ensure wheels are aligned properly.
Lubrication – Apply chain oil and check bolt tightness to maintain smooth performance.
Tyre Pressure – Regularly monitor to prevent flats and enhance efficiency.
Routine Maintenance (Every Few Weeks)
Chain Care – Clean and lubricate your chain to minimise wear and prolong its life.
Brake Safety – Check brake pads and responsiveness before each ride.
Tyre Inspection – Look for punctures and ensure correct air pressure.
Handlebar & Stem Alignment – Confirm they are tight and secure to prevent instability.
Frame Safety Check – Look for any signs of damage or cracks.
Professional Check-Ups
Have your bike serviced at least once a year, or more frequently if you ride often.
Aftercare for Your New Electric Bicycle (e-Bike) Initial Check-Up (First 50-100 miles)
Battery Care – Fully charge your battery (if required) before the first ride and store it in a dry, moderate-temperature environment.
Avoid Overcharging – Unplug the charger once fully charged to extend battery life.
Routine e-Bike Maintenance (Every Few Weeks)
Motor Inspection – Listen for unusual noises and ensure smooth operation.
Battery & Connection Checks – Inspect cables and connectors for dirt, moisture, or damage.
Seasonal e-Bike Maintenance
Check Electrical Components – Ensure wires and connections are clean and secure.
Professional Servicing – Have your e-bike inspected at least once a year or every 500-1000 miles for optimal performance.
By following these aftercare guidelines, you’ll help ensure that your bicycle runs smoothly, lasts longer, and remains a joy to ride. Stay safe and enjoy the ride!
If you have any problems or concerns: Contact All Terrain Customer Services on 01274 588488 or email sales@allterraincycles.co.uk
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