The new 300 models will share the same 286cc liquid-cooled Single. The new engine features a 37cc increase in displacement from the 249cc Single that powers the Honda’s popular entry-level CBR250R. The extra cubes are gained via an 8mm longer stroke, now 63mm.
The CB300F’s spec list is virtually identical to its R sibling including a matching 30.7-inch seat height as well as wheelbase, rake and trail measurements. The biggest discrepancy is the 300F’s 348 pound claimed curb weight, a full nine pounds less than the fully-faired R. The naked bike’s MSRP also undercuts the R model by $400.
The most obvious change between the two designs is the F model’s naked aesthetic. Shorn of the R’s full fairing and windscreen, the F takes its cues from the similar styling divergence found in the CB500 models.
Honda press materials don’t specify any other changes at this time, but it seems the F may also follow the lead of the 500F with subtle ergonomic changes. The 300F model sports a taller handlebar mount, as opposed to the R’s lower-placed clip-ons (the 500F handlebar included risers). In the CB500F this slight revision yielded a more comfortable upright stance, and neutral handling (read more in the 2013 Honda CB500F First Ride).
The most natural sales rival for the new Honda CB300F would seem to be Suzuki’s GW250. Both retail for $3999 and are the only naked offerings in the once-barren, now-robust entry-level market.
2015 Honda CB300F Specifications:
Engine: Liquid-cooled Single
Bore x Stroke: 76 x 63mm
Fueling: PGM-Fi, 38mm throttle body
Compression Ratio: 10.7:1
Valvetrain: DOHC; four valves per cylinder
Front Suspension: 37mm fork; 4.65 inches travel
Rear Suspension: Pro-Link single shock with five-way preload adjustability; 4.07 inches travel
Front Brake: Single 296mm disc
Rear Brake: Single 220mm disc
Front Tire: 110/70-17
Rear Tire: 140/70-17
Rake: 25.30 degrees
Trail: 98mm (3.9 inches)
Wheelbase: 54.3 inches
Seat Height: 30.7 inches
Claimed Curb Weight: 348 pounds
Fuel Capacity: 3.4 gallons
Claimed Fuel Efficiency: 71 MPG