IndeeSource builds MotoBASE pioneer Bradley O’Neal a 170-hp “Rocket Bike”…
Pioneered in the 1960s, BASE jumping is one of the wildest adventure sports ever conceived, in which parachutists leap from fixed objects, hence the acronym BASE: Buildings, Antennas (radio masts), Spans (bridges), and Earth (cliffs such as Yosemite’s infamous El Capitan, a birthplace of the sport).
Recently we got in touch with Colorado’s Bradley O’Neal (@bradley_slums), the pioneer of a sport he calls MotoBASE:
“I am a professional freerider/BASE jumper and the pioneer of a sport I call MotoBASE. I turn moto jumps into BASE jumps and I’ve designed a parachute system for my bikes.”
Since a video is worth a million words, here’s a video of one of Bradley’s jumps — insane!Bradley had all but maxed out his 450’s potential, hitting Moto-BASE jumps at around 85 hp, so it was time for more power. So he got together with his sponsor K-Chill and builder/engineer Nate Engle of IndeeSource to develop the “Rocket Bike” you see here — a 170+ hp, CBR1000RR-powered hillclimber built to Bradley’s specs:
“This bike was built for MotoBASE and hillclimb racing. Ultimately I want to see how high I can jump this bike before landing under parachute…”
The heart is a modified 2014 CBR1000RR Fireblade engine planted inside a one-off CAD-designed 4130 chromoly billet/tubular TIG-welded space frame — trick! The intake plenum was designed to accommodate secondary injectors and the exhaust consists of stainless steel individual headers, TIG-welded with billet stainless steel exhaust flanges. GUHL Motors modified the stock CBR harness while the good folks at Twisted Development handled the dyno tune.
The bike features stock 2019 Honda CRF450 ergonomics and plastics, with a custom 5″ extended 4130 chromoly/7075 aluminum swingarm.
Up front is a set of KYB forks sourced from a CRF450, while a WP shock handles duties out back — both tuned by JBI Suspension. The bike is rolling on a Dubya/Excel/Talon wheelset with a 530 chain. Weight is 360 pounds, and the Fireblade engine, capable of 13,900 rpm, cranks out north of 170 ponies!
“The bike is super fast obviously and is quite the workout riding it hard. Feels like you’re doing pull-ups when you hit the throttle.”
Below, we talk to Bradley for the details on the “Rocket Bike.”
Honda CRF / Fireblade Custom: Rider Interview
• Please tell us a bit about yourself, your history with motorcycles, and your workshop.
I’m Bradley O’Neal. I’m 35 yrs old from Cortez, CO. Started riding at 5 years old. Raced all my youth up until about 20 years old. I am a professional freerider/BASE jumper and the pioneer of a sport I call MotoBASE. I turn moto jumps into BASE jumps and I’ve designed a parachute system for my bikes.
• For what class of racing was the bike built?
This bike was built for MotoBASE and hillclimb racing. Ultimately I want to see how high I can jump this bike before landing under parachute…
• What custom work was done?
- 2014 Honda CBR1000RR Fireblade motor, stock 170hp at the crank, clearanced oil pan, custom oil pickup
- Dynojet piggyback tuner, ECU dyno-tuned by Twisted Development
- GUHL Racing modified stock CBR1000RR wiring harness, CARB sensors removed, rev limiter removed (13,900 RPM achievable)
- 100% custom CAD-designed intake plenum to accommodate secondary injectors, K&N pod air filter
- Modified/reinforced stock CRF450 subframe
- 100% custom CAD-designed 4130 chromoly billet/tubular space frame, TIG-welded
- 100% custom CAD-designed 4130 chromoly/7075 aluminum swingarm, 5″ longer than stock CRF450, linkless design, spherical bearing pivots, TIG-welded
- 100% custom CAD-designed fuel tank with integrated CBR1000RR fuel pump/regulator
- KTM 450sx single radiator modified, dual Spal fans, custom aluminum/silicone water lines
- WP rear shock, custom tuned by JBI Suspension
- 49mm KYB front fork, 2019 CRF450 tuned by JBI Suspension
- Dubya/Excel/Talon wheelset, billet 520 to 530 chain/sprocket adapter
- XTRIG triple clamps
- Mika Metals handlebars
- CBR1000RR hand controls, modified throttle cable
- Stock 2019 CRF450 ergonomics/wheel travel retained
- TIG-welded stainless steel individual headers, billet stainless steel exhaust flanges
- ERA/Kchill/slums graphics
- Thrill Seekers seat cover
- 2019 CRF450 plastics/seat
• Any idea of horsepower, weight, and/or performance numbers?
Bike is 170hp, 360lbs.
• Does the bike have a nickname?
• Can you tell us what it’s like to ride/race this bike?
The bikes is super fast obviously and is quite the workout riding it hard. Feels like you’re doing pull-ups when you hit the throttle.