Trek Checkpoint ALR 4
The Checkpoint ALR 4 is the gravel bike for Salento's white roads: versatile, tough and ready for any adventure, from coastal dirt tracks to long days among olive groves.
Highlights
- 700c wheels for speed and comfort on every surface
- Checkpoint carbon fork with rack and mudguard mounts
- Shimano hydraulic disc brakes
- Shimano Sora 2x9 drivetrain
- Bontrager GR1 Comp 700x40mm tubeless-ready tyres
Available sizes
Size chart: rider height
Find your size from your height. If you are between two sizes, tell us your inseam and riding style and we will pick for you.
| Size | Rider height (cm / ft-in) | Inseam (cm / in) | Availability |
|---|---|---|---|
| XS | 150–157 cm / 4'11"–5'2" | 71–74 cm / 28"–29" | In our fleet |
| 49 | 156–163 cm / 5'1"–5'4" | 74–77 cm / 29"–30" | In our fleet |
| 52 | 163–168 cm / 5'4"–5'6" | 76–79 cm / 30"–31" | In our fleet |
| 54 | 168–174 cm / 5'6"–5'9" | 78–82 cm / 31"–32" | In our fleet |
| 56 | 174–180 cm / 5'9"–5'11" | 81–85 cm / 32"–33" | In our fleet |
| 58 | 180–185 cm / 5'11"–6'1" | 84–87 cm / 33"–34" | In our fleet |
| 61 | 185–191 cm / 6'1"–6'3" | 86–90 cm / 34"–35" | In our fleet |
Indicative manufacturer guidance. Saddle height and stem are adjusted at pick-up, free of charge.
Collect and return your bike at our points in Lecce, Calimera and San Foca, with flexible hours. Tell us where you are staying and we'll organise delivery and collection — the cost is confirmed when you book.
Full specifications
All manufacturer technical specs.
- Frame
- Alpha 300 Series aluminium, tapered head tube, internal cable routing, rack, fender and frame-bag mounts, flat mount disc, 142x12mm thru axle
- Fork
- Checkpoint full carbon, rack and fender mounts, flat mount disc, 12x100mm thru axle
- Drivetrain
- Shimano Sora R3000 9-speed · FSA Omega 46x30 crankset · Shimano HG400 11-32 cassette · Shimano HG53 chain
- Brakes
- Shimano RX400 hydraulic disc, flat mount · Tektro centerlock 160mm rotors
- Wheels
- Bontrager Switch thru axles · Bontrager GR1 Comp Tubeless Ready 700x40mm tyres with G3 protection
- Components
- Bontrager Verse Comp saddle · 27.2mm alloy seatpost · Bontrager Elite Gravel handlebar · Bontrager Supertack tape
- Weight
- 10.01 kg (size 56, with TLR sealant) · Weight limit 125 kg
Official Trek spec sheet
Complete manufacturer specifications for this model.
Checkpoint ALR 4 is an aluminum gravel bike that offers an incredible amount of features despite the price. It's built for gravel and dirt roads, but it's also at home in daily commuting and granfondos. This bike knows no boundaries, making it an ideal solution for venturing onto any road or trail.
- Frame
- 300 Series Alpha Aluminum, tapered head tube, Control Freak internal routing, 3S chain keeper, rack and fender mounts, flat mount disc, sliding horizontal dropouts, 142x12mm thru axle
- Fork
- Checkpoint carbon, tapered alloy steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle
- Frame fit
- Gravel
- Weight
- 56" - 10.26 kg/22.62 lbs
- Weight limit
- This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 125 kg (275 pounds).
- Shifter
- Shimano GRX RX400, 10 speed
- Front derailleur
- Shimano GRX RX400, braze-on
- Rear derailleur
- Shimano GRX RX400, long cage, 36T max cog
- Crankset
- Size: 49 Shimano GRX RX600, 46/30, 165mm length | Size: 52 Shimano GRX RX600, 46/30, 170mm length | Size: 54, 56 Shimano GRX RX600, 46/30, 172.5mm length | Size: 58, 61 Shimano GRX RX600, 46/30, 175mm length
- Bottom bracket
- Shimano RS500, 86mm, PressFit
- Cassette
- Shimano Tiagra HG500, 11-34, 10 speed
- Chain
- KMC X10
- Max. chainring size
- 1x: 44T, 2x: 50/34
- Front hub
- Bontrager alloy, sealed bearing, Centerlock disc, 100x12mm thru axle
- Front skewer
- 100x12mm thru axle
- Rear hub
- Bontrager alloy, sealed bearing, centerlock disc, Shimano 11 speed freehub, 142x12mm thru axle
- Rear skewer
- 142x12mm thru axle, 174mm length
- Rim
- Bontrager Tubeless Ready, 28-hole, 17mm width, Presta valve
- Spokes
- 14g stainless steel, black
- Tire
- Bontrager GR1 Comp, wire bead, 60tpi, 700x40mm
- Max. tire size
- 45mm (49 and 52 cm: 40 mm due to toe overlap)
- Saddle
- Bontrager Montrose Comp, steel rails, 138mm width
- Seatpost
- Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset, 330mm length
- Handlebar
- Size: 49 Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 38cm width | Size: 52 Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 40cm width | Size: 54, 56 Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 42cm width | Size: 58, 61 Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 44cm width
- Handlebar tape
- Bontrager Supertack Perf tape
- Stem
- Size: 49 Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length | Size: 52, 54 Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length | Size: 56, 58 Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 100mm length | Size: 61 Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 110mm length
- Brake
- Shimano RX400 hydraulic disc, flat mount
- Brake rotor
- Shimano RT70, Centerlock, 160mm
- Disc size
- Max brake rotor size: 160mm front & rear
Included in every rental
The rental price already includes all the accessories — nothing to add, on every bike in the fleet.
- Helmet
- Front and rear lights
- Lock
- Small frame bag
- Phone mount
- Pump
- Repair kit (pump, inflate and repair)
- Spare inner tube
- Rear rack, if you need one (except Trek Domane)
- Garmin / GPS mount
Optional extras
Add them when you book — we set the bike up before delivery.
- Clipless pedals SPD (MTB), SPD-SL or Look (road)+5€
- Panniers / double bag (2 × 15 lt = 30 lt)Not available on the Trek Domane+2€ / day
- Child seatE-bikes onlyon request
Second removable Trek battery: +10€ per day. No security deposit required. Sizes from 49 to 61 (XS to XL).
Reviews of this bike
Giorgio
Switzerland · September 2026
San Foca up and down the coast
Great flexibility to be able to choose a great gravelbike and pick it up directly in San Foca, with the possibility to park the car. And then the customisation possibilities with pedals, Garmin mount. Flexible return. Overall a very enjoyable experience that I can wholeheartedly…
Emile
France · July 2026
Amazing experience
j’avais un commentaire pour dire que j’avais adoré l’expérience et que les services proposés étaient Excellent ! Encore merci pour cette expérience
