Harley-Davidson Street Bob specifications

Harley-Davidson · Cruiser

The Harley-Davidson Street Bob is Harley's Milwaukee-Eight 117 cruiser, rated at 98 hp and 120 lb-ft with a 3.5 gal tank. Harley prices it at $14,999, and the engine has been in the cruiser line since the 2018 model year overhaul.

What a ride review says

Dancing the Polka notes that the Milwaukee-Eight was introduced to the cruiser line-up for 2018 along with a complete overhaul of the chassis, and that the 117 cubic inch engine has more capacity than a Toyota Corolla. It explains the High Output configuration, which Harley calls ideal for riders who crave high performance in the upper rev range, as the engine in the Low Rider ST and Low Rider S.

Its verdict on the Street Bob is that the engine can easily be pushed far beyond what the ergonomics comfortably allow, which is a fair warning about a bike with a 25.8 in seat, minimal wind protection and 4.9 in of ground clearance.

Size, chassis and set-up

The Street Bob has a 64.2 in wheelbase, a 30 degree rake and 6.2 in of trail, which is long and stable. It runs a 100/90B19 front tire and a 150/80B16 rear, a 49 mm dual-bending valve fork with gaiter covers, and a hidden coil-over monoshock with cam-style preload adjustment. Brakes are a four-piston fixed front caliper and a two-piston floating rear.

It weighs 646 lb in running order, which is 48 lb less than the Fat Boy, and holds 3.5 gal against the Fat Boy's 5 gal.

Street Bob against its siblings and rivals

At $14,999 the Street Bob costs $7,600 less than the Fat Boy at $22,599 and $4,000 less than the Low Rider S at $18,999. Indian's Chief Bobber at $17,499 is the closest rival, at 694 lb running order, and BMW's R 18 weighs 760.5 lb. The Harley is the lightest and cheapest of the big-twin cruisers in this comparison, and the 3.5 gal tank is the compromise.

The Softail range in one comparison

Harley builds its Softail cruisers on the same 117 cubic inch engine and a shared chassis, and the models differ in seat, wheels, fork and price. The Street Bob at $14,999 weighs 646 lb, has a 100/90B19 front and 150/80B16 rear tire, a 25.8 in seat and a 3.5 gal tank.

The Low Rider S at $18,999 weighs 670 lb with 110/90B19 and 180/70B16 tires, a 27 in seat and a 5 gal tank. The Fat Boy at $22,599 weighs 694 lb with 160/60R18 and 240/40R18 tires and a 25.9 in seat. Each step up adds weight, rubber and fuel. The Street Bob is the lightest and cheapest, with the smallest tank.

Who buys a Street Bob

The Street Bob is the bare-bones Harley for a rider who wants the big-twin sound and a low seat without extra bodywork, and who plans to customize it. The 6.2 in of trail and 64.2 in wheelbase give it a straight-line stability. The comment that the engine outruns the ergonomics says the same thing from another angle: the bike has power to spare.

But the riding position is a laid-back cruiser's, and a rider who wants to go fast will feel it.

Street Bob against the Chief Bobber and Low Rider S

Indian's Chief Bobber is the closest cruiser rival, and Harley's own Low Rider S is the higher-output sibling.

Harley-Davidson Street Bob

117 cu in; 646 lb; 25.8 in; $14,999.

Harley-Davidson Low Rider S; 117 cu in; 670 lb; 27 in; $18,999.

2026 Harley-Davidson Street Bob questions

How much power does the Harley-Davidson Street Bob make?

Harley rates the Milwaukee-Eight 117 at 98 hp and 120 lb-ft. The High Output version in the Low Rider S and ST makes more, per Dancing the Polka.

Is the Street Bob comfortable?

A ride review says the engine can be pushed far beyond what the ergonomics comfortably allow. The seat is 25.8 in laden, and the tank holds 3.5 gal.