Mechanic Paul shows off his installation of a 3×3 nine speed IGH. See 3×3’s custom Catrike torque locks that make wheel removal a breeze! Paul shows the EShift components that integrate with Bosch’s Smart System.

The Coolest Build Ever!!

Mechanics Jack and Paul tag team on a Catrike Dumont with Bosch-Rohloff electronic shifting. 

Catrike-Bosch-Rohloff is inarguably the coolest collaboration we’ve ever done!

In the background you hear Jobin’s O Amor Em Paz played by arguably -easily arguably- the greatest Jazz collaboration ever! Wes Montgomery with Wynton Kelly, Paul Chambers and Jimmy Cobb

Good wheel builders are by equal-measures talented and methodical -each step must be followed and there are no shortcuts to a good build. Mechanic Jack’s Rohloff A12 build is a master class!

This build is going into our brand new DEMO Catrike Dumont A12 Thru Axle Bosch Rohloff E-14 Electronic Shift. The Atomic Orange beauty will be on our test floor this week, so call/email if you want to take it for a spin.

The music is the Dead Rocks surfer music/rockabilly take on the Brazilian classic Pais Tropical. Go listen to the rest of their fabulous music at https://www.deadrocks.com.br/

Mechanics Paul and Jack, joined by Shop Dogs Mylo and Rosie, talk about what Jack enthusiastically calls “the coolest build ever”. It’s a Catrike full-suspension Dumont with Bosch Motor Kit with integrated Rohloff Electronic Speedhub shifting.

Geek Alert!! Mechanic Paul lays out a Bosch Rohloff E-14 dual battery electronic shift wiring harness. And they said it couldn’t be done!!

(full disclosure: They never said that. Actually, they said it COULD be done. So, we did it)

From wheel build to final assembly, Mechanics Jack and Paul build a Bosch Rohloff E14 Catrike Dumont.  

The music’s O Amor Em Paz from Wes Montgomery and the Wynton Kelly Trio

For New Years 2025, Mechanic Paul installed our first Bosch Smart System on our demo Catrike Dumont. It’s on our showroom floor now. Call us to schedule a test ride!

Mechanic Jack builds a Schlumpf Hi Speed Drive.  This internally-geared planetary drive provides a 27 tooth “granny” gear, but switches to a 2.5x overdrive (meaning the chain ring spins 2.5 times for every revolution of the pedals) -resulting in a 68 tooth-equivalent “Monster” downhill gear.  

Israeli classical guitarist Yaniv Oron covers the Nirvana classic About a Girl

Mechanic Rick builds a Schlumpf Mountain Drive.

In the background we hear Ethiopian legend Mulatu Astatke

Pretty-much every motor kit installed today is “mid-drive”.  But, we’re still happy to show off the craftsmanship that goes into every build.  Here, Mechanic Spencer performs a wheel build around an old hub motor kit

Mechanic Spencer finishes up with a little jig to French musician Chris Joss

Preparing a trike to accept hydraulic disc brakes, our mechanic ensures the caliper mounting surface is planer to the rotors.  It’s all pretty routine, but makes for a cool video.