Drag site icon to your taskbar to pin site. Learn More

Ack Attack Again World's Fastest Motorcycle

Monday, September 27, 2010
Climbing out of the Ack Attack after 361 mph run.
Rocky Robinson and the Ack Attack team set a new motorcycle land speed record of 376.156 mph at the Cook Motorsports Top Speed Shootout 2010 held this past weekend on the Bonneville Salt Flats.
Motorcycle USA contributor Rocky Robinson and the Top 1 Ack Attack crew battled through adversity all weekend long to set a new motorcycle world land speed record of 376.156 mph at the Cook Motorsports Top Speed Shootout 2010. After a first run where Rocky said the Ack Attack streamliner wanted to “heel over to the right” followed by gearing issues that almost prevented them from making a final run, Rocky and the Ack Attack crew pulled it all together to make a record-breaking run down the Bonneville Salt Flats. The Ack Attack streamliner’s exit speed was an incredible 394 mph while its kilo record was 376.363.

Here’s how the moderator from the Landracing Forum for the Top Speed Shootout 2010 recounted the historic event in his post from the scene:

“Bike is moving - heading towards us -- we're now at the four mile.
Entry 379 Mile 386
HE DID IT!!!!!!!
What a run, what a rush to see him blow past us.
Official speeds entry 379. mkilo 387.1 milke 386.9 exit 394 mph. WHOLLY SH*T.”

Robinson once again holds the title of world’s fastest man on two wheels after recapturing the title he lost to Denis Manning’s BUB 7 streamliner. His 394 mph exit speed is the closest yet to the magical 400 mph barrier teams like Ack Attack and BUB 7 strive to shatter. Here’s what Robinson’s team posted on his official site.

“What a year it’s been. To summarize, Rocky has taken the record back on September 25, 2010 at 376.363 mph after losing the record he held from the TOP 1 OIL World LSR Shoot Out in 2008 to his rival Chris Carr on the BUB Streamliner at the Cook's Shootout in 2009."

Robinson barely managed to break the 300 mph barrier on his first run after experiencing difficulties with the streamliner’s aerodynamics tilting to the right. Later, Mike Akatiff and team had to deal with an engine that wouldn’t shift into fifth or sixth gear.

Check out this post written by the moderator in the Landracing Forum chronicling the problems that plagued the team right up to the last second.

“So if the bike wouldn't shift beyond fourth (well, one engine would, the other wouldn't) -- well, what to do? While Rocky was in the pit he was brainstorming. Mike Akatiff went to the lawnmower pit (about 5 miles down course) to join in the celebration and while he was gone Rocky got the idea of re-gearing so fourth would maybe do it. He called Mike, he and Mike talked to the gear guy and decided that such-and-such sprockets would be right for 385 or so in fourth, and they decided that what the heck, there wasn't much to lose if it didn't work -- and everything to gain. So they dug around in the parts boxes -- witness this stack of rear sprockets.”

The adversity Rocky and his team had to overcome makes their accomplishment all the more remarkable. Congratulations, Rocky and the Ack Attack team on your world record-setting run. Can’t wait for you to share the story in your monthly Motorcycle USA column, Salt Addiction.
Dealer Locator

Login or sign up to comment.

Drew Gatewood -AMA/F.I.M. Chief Technical Steward & Sufferer of Salt Flats Fever.  October 6, 2010 06:21 PM
Nice job by ALL.
To say it was geared tall on the last day would be an understatement.
Bonneville...where big things happen!!
Ryan -Great job  September 28, 2010 10:06 AM
I'm a fan of Chris and Dennis but have to give a thumbs up to Rocky and the Ack Attack crew. Amazing speed.
RALPH JAMES -LOTS OF TEAM  September 28, 2010 07:43 AM
Rocky is a great driver, but lets not get too Rocky Centric just because he works for you. I think the team changed a couple of engines and work on that thing for 7 days on the salt. I think the team did 2 weeks of dyno runs. There are a couple of guys that work on the liner all year long. I think the TEAM flew back to San Jose for tires that would work. I think the TEAM mounted the tires starting at 11:00PM into the early morning. I think the TEAM changed the gearing even on the motors. I think Mike Akatiff spent a ton of money building the liner and supporting it all these years. Mike NEVER gives up.
Ralph James -TEAM  September 28, 2010 07:37 AM
The Ack Attack team did lots of work. Like staying up all night to fix the bike. It was a team effort.