Reward points: 1237 points
HSBK-RS-Spec 1
In stock

Build time from start to finish is approximately two weeks

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e HSBK SPEC RS 660 package is for the more advanced trackday rider or racing teams looking to get into a MA Twins Cup championship. Highlights in this package are the proprietary ECU mapping, which optimally tune the air/fuel ratio. This is needed for the exhaust system, the air filter, and billet velocity stacks. This package also contains fully adjustable front fork cartridges and rear shock absorber. Brakes are upgraded by removing the ABS and installing stainless steel brake lines along with premium Brembo brake pads and rotors. Adjust your position on the bike perfectly with the Spider rearset and RaceSeats seat pad. These are just some highlights of this very complete and economical way to start your racing career on big tracks!

By combining the wishes of our customers with our decades of racing experience we create a fantastic racing bike together!


Aprilia Racing


I couldn’t be more happy with my decision to have had HSBK build me this bike. I’ve been riding and racing sportbikes for a combined 24 years and anyone who knows me understands how detail oriented I am. Just by listening to Bobby and seeing his actual racebikes, it was apparent just how detailed oriented he was plus his extensive knowledge and experience from building and running a successful racing team was such an added value. Moreover, I wouldn’t find this level of opportunity anywhere else at this price! He knew what worked best on the bike and what didn’t. Quality parts were used from my trick Ohlins shock to a windscreen that performed best during the teams’ previous wind tunnel testing.
From start to finish, I was treated like a valued customer. Even after delivery, Bobby offered his services free of charge for he and his crew to help set up the bike at a local track day.
I’ve had my bike for over a year now and I’m continuously amazed at the level of customer service and advice I receive from Bobby and HSBK. It’s obvious they care what they do and the people they do it for.
If you truly want a turn key, or in this case, a push-button racebike, because Bobby removed the ignition, then you should definitely consider HSBK to build your next racebike. I guarantee you will not be disappointed!!!
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