The time-honored art of getting rid of everything that doesn’t matter.
The original bobber fanatics invented the style you see here, and they had one rule: if it weighs you down, get rid of it. That’s the Street Bob® motorcycle in spades. Solo seat. Chopped rear fender. Mini-apes putting your fists in the wind. No B.S. All it takes is a twist of the wrist to send whatever the world is trying to weigh you down with to the vanishing point behind you.
Twin Cam 103™ Engine
The knowledge of what makes an engine truly move a rider runs deep at The Motor Company, and it was put to good use when we created the Twin Cam 103™ engine. We sweated bullets perfecting every cubic inch, pushing design and technology forward. And we did it all without compromising one bit of Harley-Davidson's unique styling. Evolved, yet carrying on the legacy of the Flathead, Knucklehead, Panhead, Shovelhead, Evolution® and Twin Cam 88® and Twin Cam 96® engines that came before. The performance and durability are a direct result of the untold miles logged on the V-Twin since 1909 and the proud heritage that comes from a century's worth of commitment to life on two wheels.
You don’t see a lot of 21 century technology peeking through the clean old-school lines of the motorcycles in the Dyna family. That’s the point. Once the teams of engineers and industrial designers have finished building the systems that load these motorcycles up with modern function, the job is only half finished. The next step is to find smart ways to integrate it into the design without taking away from the styling cues. Take the anti-lock brakes that are either standard or available as a factory-installed option across the line. It’s one of the top ABS systems out there, and gives you the control you want in a modern motorcycle. But the real beauty is the way we streamlined the look of the hardware.
If there’s anything the unruly bunch of riders that gravitate to a Dyna® motorcycle have in common, it’s that they’re not easily satisfied. So we built every bike in the family to bridge the gap between knockout looks and uncompromising open road function. The exceptional stiffness of the chassis makes for sure-footed handling. The brakes and suspension components are top end, and the custom-style wheels roll on premium rubber designed for both durability and grip performance. A Dyna motorcycle is rolling proof that you don’t need a bike that looks like it belongs in a B-grade science fiction movie to burn through a wicked set of curves.
Journey back far enough in the factory custom history of the Dyna family and you get to the machine that started the whole thing off: a Harley-Davidson touring bike. Seriously, and that’s your first clue to the rider comfort that waits for you in the saddle of today’s Dyna motorcycle. That early touring machine featured a new kind of isolation mounting system for the engine. Which led to a series of innovative frame designs. And that brings us to the current Dyna frame and its two-point engine isolation mounting system. It makes sure the power of 103 cubic inches of Twin Cam 103™ engine gets to the pavement. But the vibrations don’t get to the rider. You’ll find the same dogged approach to rider comfort throughout every inch of every bike in the family. Handlebars designed to fight the fatigue of a long day in the wind. Foot pegs and controls that hit your boots exactly where they ought to. The look is hard as nails. That doesn’t mean the ride has to be.
|Model||FXDB Street Bob|
|Laden Seat Height||25.5 in|
|Unladen Seat Height||26.8 in|
|Ground Clearance||4.7 in|
|Rake Steering Head||29|
|Front Tire Size||100/90B19 57H|
|Rear Tire Size||160/70B17 73V|
|Fuel Capacity||4.7 gal|
|Oil Capacity||3 qt|
|Weight Shipped||637 lb|
|Weight Running Order||670 lb|
|Engine||Air-Cooled Twin Cam 103|
|Displacement||103.1 cu in|
|Fuel System||Electronic Sequential Port Fuel injection (ESPFI)|
|Primary Drive Train||Chain34/45 ratio|
|1st Gear Ratio||9.311|
|2nd Gear Ratio||6.454|
|3rd Gear Ratio||4.793|
|4th Gear Ratio||3.882|
|5th Gear Ratio||3.307|
|6th Gear Ratio||2.79|
|Exhaust||Chrome Staggered Shorty Exhaust with dual tapered mufflers|
|Wheel Option||Black Steel Laced|
|Front Wheel Type||Black Steel Laced|
|Rear Wheel Type||Black Steel Laced|
|Caliper Type||4- pistonfixed front and 2-piston torque free floating rear|
|Brake||4- pistonfixed front and 2-piston torque free floating rear|
|Engine Torque Testing Method||j1349|
|Engine Torque||98.8 ft-lb|
|Engine Torque RPM||3,000|
|Lean Angle Right||30|
|Lean Angle Left||31|
|Fuel Economy||43 mpg|
|Electric Lighting||High Beam, Directional light bar,neutral, low oil pressure, engine diagnostics, turn signals, security system (optional) 6 speed, low fuel warnings|
|Electric Gauges||Tank mounted electronic speedometer with odometer, time of day clock on odometer, dual triometer, RPM/Gear display, fuel guage with low fuel warning light and countdown feature, low oil pressure indicator light, engine diagnostic readout, LED indicator lights, 6 speed indicator light|
Vance and Hines Two into One Pro Pipe, Hi-Flo Air Cleaner, and TTS Master Tuner.