Ja~Kamen Rider W...part 4

         Kamen Rider Accel is the second kamen rider in Double/W series. The name comes from the English word "acceleration" and his motif is that of the letter A as well as a motorcycle. 

         Ryu Terui (potrayed by Minehiro Kinomoto) is a superintendent appointed to the Futo Police Department's Paranormal Crime Investigation Division, and is Jinno and Makura's superior. Ryu lost his family when they were murdered by a Dopant with a Gaia Memory symbolized by the letter W, driving him to seek revenge against this man (Weather Dopant). 

Minehiro Kinomoto as Ryu Terui

 Kamen Rider Accel

The mysterious woman known only as Shroud assists him, providing him with the Accel Memory, Engine Blade, and Accel Driver.

 Accel Driver & Accel Memory

 Engineblade & Engine Memory

Accel's standard Maximum Drive is the Accel Glanzer Rider Kick, after charging up power to a point where Accel's body is engulfed in orange flames, he executes a jumping spinning heel kick which releases energy in the form of tread marks. While armed with the Engine Blade, Kamen Rider Accel has additional Maximum Drives.

The Engine Memory is a Gaia Memory that gives the Engine Blade its various different powers. Its powers are linked to those of the Accel Memory. This allows it to have more than one ability, each based on a different type of engine: 

• Steam, which creates a wave or wall of hot steam
• Jet, which allows the Engine Blade to execute super heated slashes or fire a bladed energy wave
• Electric, which allows the Engine Blade to perform electrically charged slashes or fire a bolt of electricity.

The power of the Accel Memory allows Kamen Rider Accel to assume Bike Form which is accessed by removing the Accel Driver buckle from the belt when the Face Flasher lights up and when transformed, it allows Kamen Rider Accel to reach speeds of 920 km/h. More info here.

Kamen Rider Accel Bike Form

Gunner A

Accel's Bike Form can combine with Gunner A to become Accel Gunner.

Another form of Accel is Kamen Rider Accel Trial. It is much faster than Accel's normal form, but its armor and overall power is weaker as a result. Once the Maximum Drive is initiated, Accel Trial can only be used for another 10 seconds before being forcibly reverted to human form, but the transformation is retained if the Trial Maximum Drive is successfully executed in under 10 seconds. This form's Maximum Drive is the Machine Gun Spike Rider Kick, a series of multiple kicks in a row which leave a series of energy treadmarks in the form of a T. When Accel Trial combines the Engine Maximum Drive with the Trial Maximum Drive, he can perform the Machine Gun Slasher Maximum Drive, repeatedly slashing the target in the time limit rather than kicking.

 Kamen Rider Accel Trial

 Trial Memory

 Diablossa

The Diablossa is Ryu's personal Ducati 999 motorcycle. It also has a holder for the Engine Blade. Ryu does not ride it as Accel, likely because of his ability to exceed its speed when transformed. Its name comes from the Italian words "Diablo" and "Rosso" (meaning "Red Devil").

More info from wikipedia. (images from TV Asahi).

Ja~Kamen Rider W...part 3

Ja~Kamen Rider W...part 2

Ja~Kamen Rider W...part 1