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Chris Timm
Hans Christoph Timm

The most important new bike component since suspension:
Rohloff Speedhub



Why do I ride the Rohloff Speedhub? Glad you asked: Because I like technically elegant solutions, and because it is one of the very few hubs strong enough for off-road tandems. After all, it carried my through the 2001 TransAlp Challenge, the toughest MTB race on earth.
 
A look into the Rohloff Speedhub
A look into the Rohloff Speedhub
My full-suspension tandem with Rohloff Speedhub
My full-suspension tandem with Rohloff Speedhub
A look at the two shifter cables and the hydraulic line for the disk brake.
A look at the two shifter cables and the hydraulic line for the disk brake.

 
Pros
Cons
  • Stronger rear wheel due to perfectly symmetrical flange spacing (will survive even the toughest off-road terrain, even on a tandem and with the additional stresses of a disk brake)
  • Only 32 spokes: No more hunting around for hard-to-find 40- or 48-hole tandem rims
  • Almost no maintenance (oil the chain regularly and change the oil in the hub once a year)
  • Less maintenance costs: Chain and chainring last longer; cog lasts longer AND can be turned around and reused AND is cheaper to replace than a cassette
  • Less problems after a crash: A bent derailleur hanger will not affect shifting
  • Perfect shifting even in inclement weather: Two shifter cables ensure trouble-free operation
  • Easier to clean
  • Only one shift lever
  • Perfectly even gear spacing (always 13.5% jumps between gears)
  • Same or greater gear ratio than on most derailleur MTBs; much wider ratio possible if combined with front derailleur
  • Single-side drive on tandems possible without problems (cheaper AND stiffer drivetrain!)
  • Shifting possible during standstill
  • Shifting possible while coasting
  • No more breaking chains
  • No more chainsuck
  • No more hub problems: So far no Speedhub has failed even under the strongest tandem loads, while even some of the most expensive most cassette hubs on the market have been reported to fail eventually (I know first-hand reports about failed hubs from Edco, Hügi, Phil Wood, and Hadley).
  • It's not from the monopolist!
  • Shifting under full load not possible (though this will likely lead to chain or cog failure on a derailleur-equipped bike, too)
  • Extremely wide gear ratio not possible without front derailleur (though this is not possible without a front derailleur on a derailleur-equipped bike, either ;-) )
  • About a pound heavier than XTR.
  • Weight distribution different: More weight at rear wheel
  • Impossible to repair at home if it should fail (that's a big IF)
  • Twist shifter only
  • Taking out rear wheel more difficult (not with OEM-dropout)
  • Shifts between 7th and 8th tricky under load
  • Slight grinding noise in a few of the lower seven gears (5th and 7th on my hub) - supposed to improve with new oil available in 2002
  • Not compatible with Arai drum brake.
  • Special disk rotors needed (rotors for all popular brands of disk brakes are available, though)
  • Depends on a small company

Hans Christoph Timm <hans.christoph.timm@politik.uni-freiburg.de>


Site visits since March 30, 2001
Last update: 2002-05-03