Honda NSF250R Moto3 Bike Review- First Look- Honda NSF250R Road Racer

18 Июн 2015 | Author: | Комментарии к записи Honda NSF250R Moto3 Bike Review- First Look- Honda NSF250R Road Racer отключены
Honda NSF250R

Honda NSF250R – First Honda’s Moto3 contender is for action.

As the last surviving world-championship class approaches its at the end of 2011, we get to take a peek the future of the new four-… Moto3 that will replace it in Prix competition. Honda has geared up for the class with its new developed in part by using the RS125R—the last “factory” to compete in the 125 Grand Prix its benchmark.

New rules dictate a engine-bore size of 81mm not more than four Desmodromic and pneumatic valvetrains are not while the rev limit is restricted to a of 14,000 rpm.

Moto3 Singles are intended to the base unit for a modular system, with all three GP sharing the same 81mm Next year’s 1000cc bikes will be limited to cylinders, but there will be no on valvetrain or rev limits. In 2013, we the Moto2 class to drop the Honda CBR600RR-powered, single-make in favor of 500cc Twins the same 81mm bore as in the two classes.

Using the RS125R as a starting created a challenging set of obstacles for engineers to overcome. The biggest was the same level of overall compactness while shoehorning the larger, 250cc four-… a twin-spar frame that has the basic measurements as it did with the two-…. Engineers felt was mandatory to make the transition the 125s to Moto3 as easy as for the riders.

To squeeze that engine into the frame, the inclined its cylinder 15 degrees and the head was rotated 180 degrees, the intake at the front and the exhaust at the similar to the Yamaha YZ450F The muffler sits underneath the in an effort to concentrate mass to the bike’s center of gravity. The configuration also allowed the to be tucked in close to the crankcase, the bike achieve its ultra-short, wheelbase.

Despite regulations allowing a bore, Honda chose and … dimensions of 78.0 x A very short piston only 31.5mm tall and crossed ribs around its pin for rigidity. A forged crankshaft on plain bearings with a high-tensile-steel connecting rod also on plain bearings. A single resides in a 50mm throttle feeding a pair of 32.5mm intake valves with 26mm exhaust valves rid of the used charge.

Honda NSF250R

Valves are set at a 21.5-degree included and are actuated by hollow camshafts via cup tappets. No compression ratio have yet been released.

claims 48 peak horsepower at rpm, not fully exploiting the allowed by the rulebook, and 20.6 of peak torque at 10,500 Impressive figures for sure, considering the bike’s claimed dry weight.

Seat height is set at a confidence-inspiring inches. Rolling gear of 17-in. wheels front and in 2.50-in. and 3.50-in. widths, A single Nissin radial-mount caliper squeezes a 296mm up front. An inverted 35mm is set at 22.5 degrees.

As always, leaves it to the teams to choose of the remaining chassis components via the or with in-house racing

Honda NSF250R
Honda NSF250R
Honda NSF250R
Honda NSF250R

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