Checkpoint ALR 4
Checkpoint ALR 4 is a high-performance gravel bike designed for adventure on any terrain. With a 300 Series Alpha Aluminum frame, it delivers excellent performance on rough gravel roads while remaining smooth on pavement. Also, this bike has mechanical disc brakes, an SRAM Apex 11-speed transfer, and tubeless-ready wheels.
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Overview
Features
Specs
Sizing
Geometry
It's perfect for you
You're set for off-road exploration and need a gravel bike that offers both value and performance. The Checkpoint ALR 4 is your gateway to transforming every journey into an exciting adventure.
The technology you get
features a 300 Series Alpha Aluminium frame, concealed cables that stay out of the way of bags, built-in mounts for racks, mudguards, and frame bags. It features a 1x11-speed SRAM Apex drivetrain for smooth gear transitions on varied terrain, mechanical disc brakes for reliable stopping power in any condition, tubeless-ready rims, and wide Bontrager Girona Pro 700x42c gravel tires for enhanced comfort and grip.
Generally
If you're prepared to tackle any route and deal with everyday commutes, the Checkpoint ALR 4 is the perfect partner. With its durable alloy frame, accessory attachments for all your needs, wide tires for a comfortable ride, and adjustable options, it emphasizes versatility no matter where the road or trail takes you.
Why you'll love it
If you're prepared to tackle any route and deal with everyday commutes, the Checkpoint ALR 4 is the perfect partner. With its durable alloy frame, accessory attachments for all your needs, wide tires for a comfortable ride, and adjustable options, it emphasizes versatility no matter where the road or trail takes you.
The Walkthrough
New progressive geometry
Experience fast and light control that keeps control and balance, especially during difficult drops, with the Checkpoint ALR 4.
Tyre clearance
High clearance lets you safely handle bigger gravel and varied terrain by putting heavier tires, such as 700x45 mm or 27.5x2.1".
Tons of Mounts
You can easily carry your water bottle and gear thanks to the integral frame bag and mudguard mounts for seamless convenience.
Series Alpha Aluminum
Trek's premium aluminum is hydraulically shaped into size-specific tubes, resulting in an amazing balance of lightweight, rigidity, and strength that complements Trek's advanced frame technology.
Gravel Specific Tyre
The bigger, specialized gravel tires offer improved grip and enhanced balance. when you're cycling on gravel or dirt paths.
Flat Mount Disc Brakes
The innovative flat-mount disc brakes represent a sleek, compact, and tidy departure from conventional disc brakes. They deliver exceptional performance and formidable stopping ability, even in challenging conditions.
Tubeless Ready Rims
Bontrager TLR (Tubeless Ready) for Road represents the pioneering complete tubeless solution for road wheels. By choosing TLR tubeless technology, you gain the freedom to ride with reduced tire pressure, enhancing grip and comfort, all while eliminating concerns about pinch flats.
Blendr Compatible Stem
With Bontrager's Blendr stem technology, you can easily attach your accessories directly to the stem, achieving a streamlined appearance and optimal user convenience.
*Please note – spec applies to all sizes unless listed separately
- Frame
- 300 Series Alpha Aluminium, tapered head tube, Internal cable routing, 3S chain keeper, T47 BB, rack and mudguard mounts, integrated frame bag mounts, flat-mount disc, 142x12 mm thru-axle
- Fork
- Weight
- 56 - 9.91 kg / 21.85 lbs (with TLR sealant, no tubes)
- Weight limit
- This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 125 kg (275 lb).
- Shifter
- SRAM Apex, 11-speed
- Rear derailleur
- SRAM Apex 1, long cage, 42T max cog
- *Crank
- Size: 49
SRAM Apex 1, 40T, DUB Wide, 165 mm lengthSize: 52
SRAM Apex 1, 40T, DUB Wide, 170 mm lengthSize: 54, 56
SRAM Apex 1, 40T, DUB Wide, 172.5 mm lengthSize: 58, 61
SRAM Apex 1, 40T, DUB Wide, 175 mm length - Bottom bracket
- SRAM DUB Wide, T47 threaded, internal bearing
- Cassette
- SRAM PG-1130, 11-42, 11-speed
- Chain
- SRAM PC-1130, 11-speed
- Max. chainring size
- 1x: 44T (SRAM), 50T (Shimano), 2x: 50/34
- Hub front
- Bontrager alloy, sealed bearing, CentreLock disc, 100x12 mm thru axle
- Skewer front
- Hub rear
- Bontrager alloy, sealed bearing, CenterLock disc, Shimano 11-speed freehub, 142x12 mm thru axle
- Skewer rear
- Rim
- Bontrager Paradigm, Tubeless Ready, 24-hole, 21 mm width, Presta valve
- Tyre
- Tyre part
- Bontrager TLR sealant, 180 ml/6 oz
- Rim strip
- Max tyre size
- See service manual
- *Saddle
- Size: 49, 52
Bontrager Verse Comp, steel rails, 155 mm widthSize: 54, 56, 58, 61
Bontrager Verse Comp, steel rails, 145 mm width - Seatpost
- Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length
- *Handlebar
- Handlebar tape
- Bontrager Supertack Perf tape
- *Stem
- Size: 49
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm lengthSize: 52, 54
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm lengthSize: 56, 58
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length - Brake
- Tektro C550 mechanical disc brake, dual piston, flat mount
- Brake rotor
- Tektro, CentreLock, 160 mm
- Rotor size
- Max brake rotor sizes: 160 mm front and rear
Size
49
52
54
56
58
61
Rider Height
156 - 163 cm
5'1" - 5'4"
163 - 168 cm
5'4" - 5'6"
168 - 174 cm
5'6" - 5'9"
174 - 180 cm
5'9" - 5'11"
180 - 185 cm
5'11" - 6'1"
185 - 191 cm
6'1" - 6'3"
Inseam
74 - 77 cm
29" - 30"
76 - 79 cm
30" - 31"
78 - 82 cm
31" - 32"
81 - 85 cm
32" - 33"
84 - 87 cm
33" - 34"
86 - 90 cm
34" - 35"
Geometry
All measurements provided in cm unless otherwise stated.
| Frame size number | Wheel size | A — Seat tube | B — Seat tube angle | C — Head tube length | D — Head angle | E — Effective top tube | G — Bottom bracket drop | H — Chainstay length | I — Offset | J — Trail | K — Wheelbase | L — Standover | M — Frame reach | N — Frame stack | Stem length |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 49 cm | 700c | 49.0 | 74.1° | 9.0 | 71.2° | 54.1 | 7.8 | 43.5 | 4.5 | 7.4 | 102.5 | 73.5 | 39.3 | 53.8 | 70.0 |
| 52 cm | 700c | 52.0 | 73.7° | 10.5 | 71.6° | 55.5 | 7.8 | 43.5 | 4.5 | 7.1 | 103.3 | 76.5 | 39.9 | 55.3 | 80.0 |
| 54 cm | 700c | 54.0 | 73.2° | 12.5 | 71.8° | 57.0 | 7.6 | 43.5 | 4.5 | 7.0 | 104.1 | 78.9 | 40.3 | 57.1 | 80.0 |
| 56 cm | 700c | 56.0 | 72.8° | 14.5 | 72.2° | 58.4 | 7.6 | 43.5 | 4.5 | 6.7 | 104.8 | 80.9 | 40.7 | 59.2 | 90.0 |
| 58 cm | 700c | 58.0 | 72.5° | 16.5 | 72.3° | 59.7 | 7.4 | 43.5 | 4.5 | 6.6 | 105.8 | 82.9 | 41.1 | 60.9 | 90.0 |
| 61 cm | 700c | 61.0 | 72.1° | 19.5 | 72.6° | 61.7 | 7.4 | 43.5 | 4.5 | 6.5 | 107.0 | 85.9 | 41.7 | 63.9 | 100.0 |
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