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Soma Wolverine Touring Rohloff

Soma Wolverine Touring Rohloff
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Now that the Wolverine has passed the stiffness test that lets us match Rohloff with belt drive, we've created the Weltgrinder, a complete touring build that gives you Rohloff's famously wide gear range and extraordinary durability along with Gates Carbon Drive for lower maintenance and greater longevity than a chain. Jones Loop carbon handlebars give you multiple hand positions for long days on the road, with superior positioning for both climbing and descending. The Sinewave Cycles Beacon dynamo system lets you charge smartphones and external battery packs while you pedal. Front and rear racks (Jandd Extreme and Surly Formerly Known as Nice Rack, respectively). 36-spoke Velocity Dyad rims, Panaracer Pasela 700 x 38 or WTB Byways 650b x 47 tires, Chris King headset, Thomson get the picture. The price includes all of these things; there's a nondynamo build and a dynamo build.

Weltgrinder includes tons of American-made components like the Velocity rims, the Gates system, the Chris King headset, the Sinewave Beacon, the Thomson seatpost, and the carbon Jones Loop Bars, along with the German-made hubs and lights, and let's not forget the English saddle. This is truly a bike built for the world.

Are you grossly unfamiliar with Jones Loop bars? We could not explain their virtues better than this copy from the Jones website:

Better handling and power output
The shape of the Jones Loop bar really allows you to throw the bike around in technical situations. With your hands in the wide and rearward grip position you can keep your weight back and your arm stance wide for stable and controlled technical or steep downhill riding. This position is just like having a wide bar with a short stem, similar to a downhill or dirt jumping bike, but with more sweep. This additional sweep brings your arms in closer to your side to allow more comfortable and natural use of your arm and back muscles. The sweep also allows you to push and swing the bike side to side with more control and power. It's especially beneficial when climbing.

These bars allow you to really get up on top of the pedals and grind out low cadence standing power for climbing in hard gears which is why the bar is so popular with single speeders. Your hands pull more towards your shoulders, a more natural 'pull' with stronger muscles. This allows you to push down with more force at the pedal. In extremely tight turns with the bar close to 90 degrees your outside arm and wrist is not taken to the edge of their flexible range as with traditional bars. This provides more control and stability on switch backs.

More comfortable and ergonomic
The sweep matches your natural hand and wrist positions creating a stronger hand and body position. With an H-Bar, your weight is evenly distributed across the width of your hand instead of being focused at the out side edge of your hand, the main cause of finger numbness. This 'even grip pressure' on the bar allows a better, more secure grip on the bar. This is especially nice if you chose to ride a fully rigid bike. The many and varied hand positions greatly reduce hand numbness and wrist pain. The H-Bar also reduces back pain since it has a range of hand positions from rear to front. This range allows you to move around and stretch your back. This is a bar you can ride all day.

Other Popular House Builds include:

Check out our other killer Belt Drive Bikes too.

For more information on Jones Loop bars, a review from Bikepackers Magazine can be found at


Frame Soma Wolverine cromoly (Tange Prestige, double butted)
Fork Soma Wolverine cromoly QR
Headset Chris King NoThreadset
Rims Velocity Dyad 32 or 36h (650b: Sun Ringle Inferno)
Hubs Rohloff rear, Schmidt SON28 dynamo front (or Shimano XT if no dynamo); 36h
Spokes DT Swiss stainless, with brass nipples
Tires Panaracer Pasela 700 x 38, WTB Byway 47mm, or other)
Crankset Sugino SS black, 172.5 or 175mm crankarms
Chainwheel Gates 55t CenterTrack Belt Ring
Bottom Bracket Shimano UN55
Chain Gates CenterTrack belt
Front Derailleur None
Rear Derailleur None
Rear Cogs Gates CenterTrack 20t or 19t
Shifters Rohloff
Handlebars Jones Loop, carbon, 710 mm or 660 mm; or FSA Metropolis or Soma Sparrow. Drop bars possible.
Tape/Grips Jones Chunky or ESI grips and Soma Thick N Zesty tape around the loop
Stem Salsa Guide, 110 mm 7 degrees
Brake Levers Avid SD-7
Brakes TRP HyRd hydromechanical with compressionless cable housing; Avid G2 CleanSweep 160mm rotors
Pedals Not included
Saddle Brooks B17 black (substitutions on request)
Seat Post Thomson Elite, 16 mm setback
Seat Binder Thomson
Accessories & Extras Jandd Extreme front or Axiom Journey disc rear rack; Sinewave Cycles Beacon lighter/charger (front) and B&M Top Light Line Plus (rear) (PowerPlant version only)

* Subject to change without notice.


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