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Trek Checkpoint SL 6 Carbon Gravel Bike 2019

★★★★★ ★★★★★
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Product ID: 880431

The Trek Checkpoint SL 6 Carbon Gravel Bike is an adventure bike totally without limits - a machine you can take anywhere, on any road, and in any weather.

Featuring a lightweight carbon frame absolutely packed with groundbreaking Trek innovations, and a high-performance Shimano Ultegra groupset to match, this is a truly all-road adventure bike. Whatever your plans - and however high your ambitions - the Checkpoint SL 6 is ready.

Four great reasons to buy your bike from Sigma Sports

sigma sports expert advice and rider id
Expert Advice & Rider ID

Sigma Sports has one objective - to help you find your perfect bike. Our friendly, knowledgeable staff ask you a series of questions to understand what type of rider you are and the type of riding you do. We can then identify the style of bike that best suits your needs.

sigma sports finding the right bike size
Finding the right size

Riding a bike that fits you perfectly will help keep you injury-free and ensure you enjoy riding further for longer in total comfort. We check your measurements on a jig to ensure your optimal set-up.

sigma sports bike handover
Bike Handover

When you collect your new bike we'll double-check your position and make any micro-adjustments if required. We'll also discuss the controls on your bike as well as maintenance tips.

sigma sports first free safety check
First free safety check

We offer a free safety check after six weeks or 200 miles, so you can keep riding in confidence. Visit us now in-store to discuss your new bike.

Trek Checkpoint SL 6 Carbon Gravel Bike 2019

The Trek Checkpoint SL6 Carbon Gravel Bike is an adventure bike designed to take on all comers. Whether it's a self-supported gravel race across the American wilderness or just a day of pinning corners on your favourite trail, this bike is more than a match for whatever the ride can throw at it.

The centrepiece of the Checkpoint SL6 is a carbon frameset, with tube profiles specifically shaped to encourage vertical compliance whilst keeping weight featherlight. Where this frame stands out, however, is the plethora of Trek-patented technologies that turn it from your average gravel-shredder into a truly exceptional all-road machine. The innovative IsoSpeed Decoupler unit, for example, allows the seat tube to flex independently of the rest of the bike, smoothing out the vibrations of the road whilst retaining the rigidity and stiffness of a traditional frame.

Meanwhile, Stranglehold dropouts allow you to change the bike's effective wheelbase and fine-tune the geometry to exactly what the terrain requires, whether that be a long, steady cruiser or a short, whippy trail bike. Elsewhere, Trek's Control Freak technology helps keep cable routing packaged away internally, protecting the cables from the rigours of riding and giving the bike a clean, uncluttered aesthetic.

With Shimano's premium Ultegra groupset providing the drivetrain and shifting, and hydraulic disc brakes lending incredible stopping power in any weather conditions, this is a bike you can rely on mile after mile. Tubeless-ready Bontrager wheels and some incredibly versatile Schwalbe G-One clincher tyres help complete this remarkably adaptable bike.

Whether you want a tough bikepacking steed, a year-round do-everything adventure bike, or even the most luxurious commuter on the planet, the Trek Checkpoint SL6 is a perfect choice.


  • Lightweight carbon frame has been designed for stiffness and speed
  • Isospeed decoupler provides unparalleled rider comfort
  • Boasts clearance for up to a 45mm tyre
  • Stranglehold dropout technology allows you to tailor your bike's geometry to suit the terrain
  • Premium Shimano Ultegra groupset provides flawless shifting performance

Technical Specification

FRAME Trek 500 Series OCLV Carbon, Rear IsoSpeed, Stranglehold dropouts, tapered head tube, BB90, flat-mount disc brakes, rack mounts and hidden mudguard mounts, Control Freak, internal cable routing, 12mm thru-axle, 3S chain keeper, Ride Tuned seatmast
FORK Trek Checkpoint carbon disc, carbon tapered steerer, flat-mount disc brakes, rack mounts, hidden mudguard mounts, 12mm thru-axle
HEADSET Integrated, cartridge bearing, sealed, 1-1/8˝ top, 1.5˝ bottom
STEM Bontrager Elite, 31.8mm, 7-degree, with computer and light mounts
HANDLEBARS Bontrager RL IsoZone VR-CF, 31.8mm
BAR TAPE Bontrager, black
FRONT BRAKE Shimano Ultegra flat mount hydraulic disc
REAR BRAKE Shimano Ultegra flat mount hydraulic disc
FRONT DERAILLEUR Shimano Ultegra, braze-on
REAR DERAILLEUR Shimano Ultegra, Shadow design, 11-speed
SHIFT LEVERS Shimano Ultegra, 11-speed
CASSETTE Shimano HG800, 11-34, 11-speed
CHAIN Shimano HG600, 11-speed
CRANKSET Shimano Ultegra, 50/34 (compact)
FRONT WHEEL Bontrager Paradigm Comp Tubeless Ready Disc, 12mm thru-axle
REAR WHEEL Bontrager Paradigm Comp Tubeless Ready Disc, 12mm thru-axle
FRONT TYRE Schwalbe G-One Allround, aramid bead, TL Easy, 700cx35mm, clincher
REAR TYRE Schwalbe G-One Allround, aramid bead, TL Easy, 700cx35mm, clincher
SADDLE Bontrager Montrose Comp
SEATPOST Bontrager Ride Tuned carbon seatmast cap, 20mm offset

Built, Checked, Tuned and Tested

All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools.

To see how you build your new bike once you receive it, please see our bike assembly page here.

Please note all bikes collected from our shop, are built, tested and ready to ride.

Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. We do not install accessories to bikes, including mudguards.

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