When Joe Breeze designed the original Thunder, his idea was to make a bike that had a geometry and components that allowed riders to explore the remote trails and hillsides of Northern California and beyond. That spirit lives on with the new Thunder.Still constructed with soulful ride-quality and durability of steel, the new frame boasts some major advancements to allow adventure riders to explore deep into the woods outside of town or on the other side of the world.
BREEZER COMPACT GEO: Joe created the compact frame geometry with the goal of having the smallest frame possible while using longer-length parts like seatposts so bikes properly fit riders. The benefits were both to save weight and increase stiffness for pedaling by having shorter frame tubes. Before this road frames were traditionally very tall and used short seat posts. This was problematic because the small-diameter steel tubes would flex very easily. Joe’s geometry made the frames much more agile while also offering greater maneuverability both on and off road.
BREEZE-IN DROPOUTS: Joe Breeze’s iconic Breeze-In dropouts offer twice the rigidity and half the weight of standard dropouts; after almost three decades they are still used by custom frame builders to this day. The hooded shape was a breakthrough in design that allowed two major advantages over traditional cast or forged dropouts. First was a much stronger connection between the chainstay & seatstay tubes to the dropout and the second was the ability to save weight by using less material for the forging. Breeze-Ins also enable the tubing length to extend as close as possible to the rear axle and avoid using heavy and stiff CNC yokes or mounting plates keeping the tubing the star of the show and the ride quality as high as possible. Now made for both quick-release and thru-axle applications, Breeze-In dropouts improve shifting, wheel changes, and of course, ride quality.
BREEZER STEEL 4130 CROMO: The material Joe started with, and still the staple material for most Breezer bikes. Chromoly tubing has earned its place in cycling’s list of top-rated materials as it offers incredible strength-to-weight properties, up to 5 times the fatigue & tensile strength of 6061 aluminum, while also offering excellent ride quality. Add to this the ability to repair the material after welding and you can understand why adventure riders have trusted this material most to safely carry them around the world for decades.
Multi-Mount Capability: A signature feature on all adventure models. Frames and forks come designed with multiple mounting options for racks, fenders and bottle cages. These features allow you to fully customize & personalize your Breezer for the type of riding you love most. Whether it’s loading up with five water bottles to traverse across barren wastelands or outfitting some new waterproof bags on front & rear racks for a weekend bikepacking trip, Breezer has you covered!
| Sizes | 15, 17, 19, 20.5 |
| Color(s) | Gray w/burnt orange |
| Frame | Breezer custom-butted-chromoly steel, BSA Threaded BB, 148 x 12mm |
| Fork | Chromoly disc, rack / fender & side bottle mounts, 110 x 15mm through-axle |
| Crankset | Shimano 34T |
| Bottom Bracket | Shimano threaded |
| Pedals | N/A |
| Front Derailleur | N/A |
| Rear Derailleur | Shimano 12-speed |
| Shifters | Shimano |
| Cassette | Shimano 10-51T, 12-speed |
| Chain | Shimano |
| Wheelset | WTB 29" ST i30 TCS disc, tubeless compatible, Formula hubs- Boost 148/110mm, SAPIM Leader 14g spokes, 32H |
| Tires | WTB Vigilante TCS Light Tubeless Ready, 29 x 2.5", folding bead OR Good Year Newton TL 29 X 2.4" |
| Brakeset | Shimano MT500 hydraulic disc, 180/160mm rotor |
| Brake Levers | Shimano |
| Headset | FSA 1 1/8", No.42 internal, 36° ACB-sealed, 6.5mm aluminum top cover |
| Handlebar | Breezer Riser Bar, 780mm width, 8° backweep |
| Stem | Breezer, 3D-forged 6061 stem body, 0° |
| Grips | Breezer lock-on |
| Saddle | WTB Volt Comp 142x265, cromo rail |
| Seatpost | KS RAGE-i, 30.9mm diameter |
| Weight | tbd |
| Size | S | M | L | XL | |||||||
| Bike Size(in) | 15 | 17 | 19 | 20.5 | |||||||
| A | Seat Tube, Center to Top | 370 | 420 | 470 | 521 | ||||||
| C | Top Tube, Effective | 585 | 610 | 635 | 666 | ||||||
| D | Head Tube Length | 100 | 100 | 120 | 130 | ||||||
| E | Seat Tube Angle | 75° | 74.5° | 74° | 74° | ||||||
| G | Head Tube Angle | 67.7° | 67.7° | 67.7° | 67.7° | ||||||
| H | Chainstay Length | 450 | 450 | 450 | 450 | ||||||
| I | Wheelbase | 1136 | 1162 | 1177 | 1209 | ||||||
| J | Bottom Bracket Drop | 72 | 70 | 70 | 70 | ||||||
| K | Fork Offset | 46 | 46 | 46 | 46 | ||||||
| M | Stack | 610 | 609 | 627 | 632 | ||||||
| N | Reach | 421 | 441 | 455 | 484 | ||||||
| O | Standover | 765.5 | 785.5 | 811.5 | 839.3 | ||||||
| Stem mm | 45 | 45 | 45 | 65 | |||||||
| Handlebar Width cm | 780 | 780 | 780 | 780 | |||||||
| Crank mm | 170 | 175 | 175 | 175 | |||||||
| Wheel Size | 29 | 29 | 29 | 29 | |||||||
| Seat Post Diameter mm | 30.9 | 30.9 | 30.9 | 30.9 |
This model features: Compact Geometry
Joe created the compact frame with the goal of having as small of frame possible while using longer-length parts like seatposts and stems to allow the bikes to properly fit riders. The benefit was both to save weight and increase stiffness for pedaling by having shorter frame tubes.
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