Dynamic Internally Geared Road Bike
Dynamic Bicycles introduced the Synergy this past week, an interesting road bike simply because it makes use of a Shimano Alfine internally geared hub and Versa drop bar STI-style shifter. Interesting concept for people who see the advantages of an internally geared hub but to this point have not had a road-geometry offering off the shelf. The 8-speed Alfine hub is Shimano’s most efficient one to date, and has about 95% of the range of a compact double crankset. No doubt the hub carries a significant weight penalty, but overall the $1400 bike still comes in at a reasonable 21lbs. I’d venture to guess that we’ll see more bikes like this in coming years as internally geared hubs continue to get better and more people realize the benefits of not having a derailleur system hanging out there to get damaged. What goes around comes around, like the 3-speeds of the 60s and 70s, bikes like this may find they satisfy the needs of a number of riders.