Posts Tagged ‘Motorcycle engineering’

BMW recalls 40,000 motorcycles to replace rear wheel flange

A problem with the rear wheels on a wide variety of BMW motorcycles has prompted them to issue a recall for 43,426 vehicles.  In conjunction with the National Highway Traffic Safety Administration (NHTSA),recall campaign number 15V141000 has been issued.   The recall notice states that  on affected motorcycles, the rear wheel flange threaded holes can crack if the wheel bolts are tightened beyond the specified torque limit when reinstalled after a service procedure.  BMW will notify owners, and dealers will replace the existing aluminum rear wheel flange with a steel one, free of charge. The recall is expected to begin April 21, 2015. Please follow the links below view the official documents associated with the recall: Recall acknowledgement letter: RCAK-15V141-4032.pdf  Defect Notice Report 573: RCLRPT-15V141-9082.PDF

Monster makes Ducati cross million motorcycle mark

A Ducati Monster 1200 S was the one-millionth Ducati to come off the Borgo Panigale assembly line and was presented to a Milan buyer by Claudio Domenicali, CEO of Ducati Motor Holding.  Domenicali presented the motorcycle, which contained a special laser serigraph on the handlebar bracket identifying it as the millionth bike, to Ernesto Passoni, 47, of Cincsello Balsamo at the Audi City Lab in Milan.  Passoni had placed the order with a local dealer and was told that it would be the milestone bike. “Between 1946 and today we have designed, built and delivered one million dreams that have become reality to Ducati,” Domenicali said. “Our strength is in the exceptional work that all of the Ducati employees carry out so efficiently on a daily basis, contributing to making our bikes beautiful, unique and desirable. To deliver the millionth bike produced directly into the hands of a passionate Ducatista is an incredible feeling and an incentive to continue along our growth path.”

New invention flashes motorcycle brake lights

A motorcycle accident led a college student to a good idea, and now it’s gaining traction with investors and is targeted at the motorcycle industry as a whole.  The newly developed product is called GearBrake.  The module connects to the existing wiring of a motorcycle’s rear brake light and causes the brake light to flash when deceleration or engine braking is detected in order to give other drivers extra time to react in traffic. GearBrake’s invention recently beat out three other finalist companies in late November to win a Vogt Award, a $100,000 prize, that aims to spur new manufacturing-based businesses, create jobs and boost economic development.  It was the second win last month for GearBrake as they previously scored $5,000 at the Kentucky Angel Investors competition for new business. GearBrake plans to seek an endorsement from the National Highway Transportation Safety Administration (NHTSA), and hope their light will become as standard on motorcycles as the rear windshield light is on car and pickup truck rear windshields.  GearBrake also plans to approach manufacturers to add the module as custom feature, and reached a deal recently with Janus to add the module as an upgrade on its bikes starting next year.

Yamaha recalls 2014 YZF-R6 motorcycles

Yamaha Motor Corp. recently announced that it is recalling about a small number of 2014 YZF-R6 supersport motorcycles to replace wheels that may have not been properly hardened during manufacturing.  Although the recall notice only cites 28 potentially affected units, the bikes in question may have front and rear wheels that have not been properly treated, preventing them from achieving the correct hardness for durability and safe running.  Potential effects of the improper heat treatment are that the wheels could loosen or the tire sealing may be inadequate; either situation could increase the risk of a crash. Yamaha has already notified owners, and will replace both front and rear wheel and tire assemblies on the affected bikes free of charge. Owners may contact Yamaha customer service at 1-800-962-7926 and reference Yamaha’s recall number: 990088. As with all NHTSA recalls, owners may also contact the NHTSA Vehicle Safety Hotline at 888-327-4236 or go to

Kawasaki Releases 295-hp Sportbike

After much speculation, patent discussion and a month-long Internet teaser campaign, Kawasaki finally pulled the wraps on its stunning H2-R hyperbike.  The H2-R features a supercharged 998cc inline-four, which Kawasaki claims produces 295 horsepower, and is rumored to have a top speed in excess of 210 mph.  Kawasaki is reportedly releasing the H2R as a “track only” model and is therefore able to bypass the 186 mph “gentleman’s agreement” for road legal machines.  The huge engine power is courtesy of a centrifugal supercharger developed using Kawasaki Heavy Industries’ extensive experience in building aircraft and power generation turbines. While the engine definitely takes center stage, the rest of the chassis is equally unusual, featuring a steel trellis design that Kawasaki states provided the best compromise between strength and compactness. A single-sided swingarm in aluminum is also a new direction for Kawasaki. The forks feature all three external adjustments on the fork cap and an Öhlins steering damper provides a measure of control.  To maintain maximum traction, racing slicks are fitted from the factory. Surrounding the H2-R is a carbon fiber body featuring aggressive winglets, a huge air intake tract for the supercharger and a black chrome surface finish. Developed with help from Kawasaki’s Aerospace Company, the extreme measures taken to control and direct airflow will likely be nothing short of necessary to provide stability for such a compact and powerful sportbike.  Kawasaki test rider and racer, Jeremy Toye, uploaded a photo of the H2R to his Instagram account, saying: ‘I went 210mph on it today. The wings really work.’  The photo has since been taken down. It is expected that in approximately 1 month Kawasaki will be pulling the wraps off the street version, the H2. Details such as pricing, boost levels, weight of either the H2-R or H2 are still pending, but Kawasaki has clearly established a new high-water mark for high performance motorcycling. For pictures, testing videos and more information click the link to Kawasaki’s official site.