Why buy your bike from Sigma Sports?
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All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.
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Trek Checkpoint SL5 Disc Gravel Bike 2021
Trek’s Checkpoint SL5 Disc Gravel Bike combines a carbon frame with many flexible mounting options and Shimano’s GRX groupset for a highly versatile bike.
The 11-speed groupset is gravel-specific, so uses a 46/30 tooth chainset and 11-34 cassette to provide plenty of ratios for heavily laden climbs as well as fire road blasts. Shifting is as accurate and sweet as ever from Shimano, whilst the GRX flat mount hydraulic disc brakes are equally capable of dealing with a variety of weather conditions.
At the centre of the bike is the 500 Series OCLV Carbon frame which features Trek’s IsoSpeed technology. This allows the seat tube to move independently to the top tube and provides a greater degree of compliance than would otherwise be possible without compromising the frame’s stiffness and efficiency. The IsoZone handlebar also acts to protect the rider from fatiguing vibrations so that the bike can be both comfortable and fast. A multitude of mounting points allow for luggage, racks, mudguards and bottles to be carried in various configurations when venturing far from civilisation, but it can be stripped back for local loops or daily commuting duties.
The tubeless-ready Bontrager GR1 Team Issue tyres are a good all-round option but the frame has sufficient clearance for 45mm rubber to be fitted if necessary for more grip or comfort.
Please note, accessories shown are for illustration only and not included.
Highlights
- Trek 500 Series OCLV Carbon frame with IsoSpeed, Control Freak internal routing, Stranglehold dropouts and rack and mudguard mounts
- Trek Checkpoint carbon fork with rack and mudguard mounts
- Shimano GRX hydraulic disc brakes
- Shimano GRX 11-speed mechanical groupset
- Bontrager 700c wheelset with Bontrager GR1 Team Issue tyres
Technical Specification
| Frame | Trek 500 Series OCLV Carbon, IsoSpeed, tapered head tube, Control Freak internal routing, 3S chain keeper, rack and mudguard mounts, flat mount disc, Stranglehold dropouts, 142x12mm thru-axle |
| Fork | Trek Checkpoint carbon, tapered carbon steerer, rack mounts, mudguard mounts, flat mount disc, 12x100mm thru-axle |
| Headset | FSA Integrated, sealed cartridge bearing, 1-1/8" top, 1.5" bottom |
| Bottom Bracket | Trek BB90 |
| Stem | Bontrager Elite, 31.8mm, Blendr compatible, 7 degree |
| Handlebar | Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop |
| Handlebar tape | Bontrager Supertack Perf tape |
| Front Brake | Shimano GRX RX400 hydraulic disc |
| Rear Brake | Shimano GRX RX400 hydraulic disc |
| Brake Levers | Shimano GRX hydraulic disc |
| Front Derailleur | Shimano GRX RX810, braze-on |
| Rear Derailleur | Shimano GRX RX810, long cage, 34T max cog |
| Shift Levers | Shimano GRX RX600, 11-speed |
| Cassette | Shimano 105 HG700-11, 11-34t, 11-speed |
| Chain | Shimano 105 HG601, 11-speed |
| Crankset | Shimano GRX RX600, 46/30t |
| Front Wheel | Bontrager alloy, sealed bearing, Centre-Lock disc, 100x12mm thru-axle hub with Bontrager Tubeless Ready, 28-hole, 17mm width, Presta valve rim |
| Rear Wheel | Bontrager alloy, sealed bearing, Centre-Lock disc, Shimano 11-speed freehub, 142x12mm thru-axle hub with Bontrager Tubeless Ready, 28-hole, 17mm width, Presta valve rim |
| Front Tyre | Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 TPI, 700x40c clincher |
| Rear Tyre | Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 TPI |
| Seatpost | Bontrager carbon seatmast cap, 10mm offset |
| Pedals | Available to be purchased separately |
| Claimed Manufacturers Weight | 9.72kg size 54cm |
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 specified), 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. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
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.