Radar Pro
Radar: A system for detecting the presence, direction, distance, and speed of surrounding conditions.
The dirt is your environment. Radar is your frequency for feeling it. Agile, composed, sharp, and rugged, Radar is an apparatus for experience. If you want to unplug from the machine and remember what it means to explore the wild, this is your signal.
- Off-road geometry in 4130 butted chromoly steel
- 4130 chromoly steel fork
3 pack mounts on down tube, fork legs and chainstay. Bottle mounts on seat tube and downtube. Bento box mount on top tube. Fender and rack mounts. Bring it on. - Shimano GRX 822, 12 speed drivetrain w/ 10-51T SLX cassette
- WTB tubeless ready tires & rims
- Boost hup spacing
- Clears up to 29” x 2.4” tires
Built for bikepacking, mountain touring, rough dirt, and off-road exploration, Radar is a go-anywhere platform for riders who prefer the path less traveled.
Breezer Bikes ship partially assembled from the factory. We always recommend that a trained mechanic build your bike, but if you follow the assembly video and take your time, you can build the bike yourself.
Watch Assembly Video
Full Equipment: Radar Pro
Specifications
FRAME & FORK
Frame: Breezer 4130 Butted Chromoly Steel, tapered head tube 1 1/8” to 1 1/2”, 148mm rear spacing, UDH compatible, three pack mount on top of down tube and driveside seatstay, waterbottle mount on seat tube and bottom of down tube, bento box mount on to tube,fender and rear rack mount, flat mount disc brake
Fork: Breezer 4130 Chromoly, tapered 1 1/8 to 1 1/2 steerer tube, three pack mount on each fork leg, fender mount, 15 x 110 thru axle drop out, 51mm offset, flat mount disc brake
DRIVETRAIN
Crankset: Alloy crank, 170mm XS-L, 175mm XL-XXL, steel narrow side chainring 36T
BB: Outboard cartridge bearing
Rear Derailleur: Shimano GRX 822 Shadow Plus, 12 speed
Right Shifter: Shimano GRX 610
Cassette: Shimano SLX 10-51T
Chain: KMC x12 EPT Anti Rust
WHEELSET
Rims: WTB ST i30 TCS 2.0, 32H, tubeless ready
Spokes: Pillar, 14 gauge, butted
Front Hub: KTi, sealed cartridge bearing, Center Lock
Rear Hub: KTi, sealed cartridge
Tires: WTB Nineline 29 x 2.25 TCS Light/Fast rolling 60 TPI
BRAKES
Brakes: Shimano GRX 610
Brake Levers: Shimano GRX 610
Front Rotor: Shimano Deore centerlock, 180mm
Rear Rotor: Shimano Deore centerlock, 160mm
COCKPIT & CONTACT POINTS
Handlebar: Alloy, 420mm width XS-S, 440mm width M-L, 460mm width XL-XXL 31.8mm clamp diamter
Grips: Black anti-slip tape
Stem: 3D forged alloy, +/- 7°, 70mm XS-S, 80mm M-L, 90mm XL-XXL. 31.8 clamp
Headset: FSA
Saddle: Selle San Marco Monza
Seatpost: Alloy 30.9 x 350mm XS-L, 400mm XL-XXL
Seatpost Clamp: Alloy, 35mm
FIT & DETAILS
Color: Heat Wave (Brick Red)
Weight: 30.3 lbs (Size Medium)
Geometry
XS (48cm)
Seat Tube (C–T): 480
Effective Top Tube: 580
Head Tube Length: 120
Seat Tube Angle: 74°
Head Tube Angle: 69°
Chainstay: 444
Wheelbase: 1098.9
BB Drop: 75
Fork Offset: 51
Stack: 571.1
Reach: 416.2
Standover: 779
Wheel Size: 29”
Seat Post Diameter mm: 30.9
Rider Min Height: 5'0”
Rider Max Height: 5'3"
S (52cm)
Seat Tube (C–T): 520
Effective Top Tube: 590
Head Tube Length: 140
Seat Tube Angle: 73.5°
Head Tube Angle: 69°
Chainstay: 444
Wheelbase: 1105.2
BB Drop: 75
Fork Offset: 51
Stack: 589.8
Reach: 415.3
Standover: 811
Wheel Size: 29”
Seat Post Diameter mm: 30.9
Rider Min Height: 5'3”
Rider Max Height: 5'7"
M (54cm)
Seat Tube (C–T): 540
Effective Top Tube: 600
Head Tube Length: 155
Seat Tube Angle: 73°
Head Tube Angle: 69°
Chainstay: 444
Wheelbase: 1110.6
BB Drop: 75
Fork Offset: 51
Stack: 603.8
Reach: 415.4
Standover: 828
Wheel Size: 29”
Seat Post Diameter mm: 30.9
Rider Min Height: 5'8”
Rider Max Height: 5'10"
L (56cm)
Seat Tube (C–T): 560
Effective Top Tube: 610
Head Tube Length: 170
Seat Tube Angle: 73°
Head Tube Angle: 69°
Chainstay: 444
Wheelbase: 1121.7
BB Drop: 75
Fork Offset: 51
Stack: 617.8
Reach: 421.1
Standover: 845
Wheel Size: 29”
Seat Post Diameter mm: 30.9
Rider Min Height: 5'10”
Rider Max Height: 6'0"
XL (58cm)
Seat Tube (C–T): 580
Effective Top Tube: 620
Head Tube Length: 180
Seat Tube Angle: 73°
Head Tube Angle: 69°
Chainstay: 444
Wheelbase: 1132.5
BB Drop: 75
Fork Offset: 51
Stack: 627.1
Reach: 428.3
Standover: 859
Wheel Size: 29”
Seat Post Diameter mm: 30.9
Rider Min Height: 6'0”
Rider Max Height: 6'2"
XXL (60cm)
Seat Tube (C–T): 600
Effective Top Tube: 640
Head Tube Length: 190
Seat Tube Angle: 73°
Head Tube Angle: 69°
Chainstay: 444
Wheelbase: 1153.2
BB Drop: 75
Fork Offset: 51
Stack: 636.5
Reach: 445.4
Standover: 874
Wheel Size: 29”
Seat Post Diameter mm: 30.9
Rider Min Height: 6'2”
Rider Max Height: 6'5"
The Radar Tunes Out Noise
When conditions intensify, the Radar reads what the land is really saying.
Ready to keep ramblin' as things crack, the ground shifts, and it's hot as hell out there.
Off-Road Geometry in Butted Chromoly Steel
A frame that reads between the lines when mirage appears.
Radar’s geo prioritizes stability and clarity when riding moves beyond the obvious. It keeps the ride dampened and cool as dirt roads extend, surfaces reflect, and feedback becomes harder to decipher.
Deeper Than Surface Level
Not every line is meant to be followed
29” WTB rims paired with WTB NineLine 29×2.25” tires read what’s under you before it ever reaches the frame. Compacted dirt, rail ballast — each surface carries a different story. Tubeless-ready rims let you run lower pressures for better contact, while clearance for up to 29×2.4” tires keeps you on the right side of the tracks.
Equipped for Extended Coverage
Built to support a wide range of field operations.
Five bottle cage mounts, rack and fender mounts, and triple-mount positions on the seat stay and fork allow our Radar Pros to carry the equipment needed to stay on assignment longer. From water and tools to bags and supplies, the system is designed to adapt to changing demands without compromising mobility or focus.
Signal in Motion
A dependable transmission built for sustained forward progress.
A Shimano GRX 822 Shadow Plus rear derailleur paired with a wide-range Shimano SLX 10-51T cassette delivers smooth, reliable drive across varied terrain and long routes. An alloy 36T crankset keeps cadence controlled and power predictable, resulting in a drivetrain designed to move pros forward without interruption.
Off-Road Geometry in Butted Chromoly Steel
A frame that reads between the lines when mirage appears.
Radar’s geo prioritizes stability and clarity when riding moves beyond the obvious. It keeps the ride dampened and cool as dirt roads extend, surfaces reflect, and feedback becomes harder to decipher.
Deeper Than Surface Level
Not every line is meant to be followed
29” WTB rims paired with WTB NineLine 29×2.25” tires read what’s under you before it ever reaches the frame. Compacted dirt, rail ballast — each surface carries a different story. Tubeless-ready rims let you run lower pressures for better contact, while clearance for up to 29×2.4” tires keeps you on the right side of the tracks.
Equipped for Extended Coverage
Built to support a wide range of field operations.
Five bottle cage mounts, rack and fender mounts, and triple-mount positions on the seat stay and fork allow our Radar Pros to carry the equipment needed to stay on assignment longer. From water and tools to bags and supplies, the system is designed to adapt to changing demands without compromising mobility or focus.
Signal in Motion
A dependable transmission built for sustained forward progress.
A Shimano GRX 822 Shadow Plus rear derailleur paired with a wide-range Shimano SLX 10-51T cassette delivers smooth, reliable drive across varied terrain and long routes. An alloy 36T crankset keeps cadence controlled and power predictable, resulting in a drivetrain designed to move pros forward without interruption.
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