I commute daily to work, the ride is about 10 km each way, across the city. The path is mostly streets with intersections, and a few long cycling lanes. Some hills here and there: Strava cycling app says 'Elevation Gain' is 80m.
I'm currently riding a Trek Valencia hybrid bike (2011), it's getting a bit old, and I'd like to replace it. I'm looking for the same kind of acceleration / responsiveness / sporty ride, but possibly getting me to make less effort to get the same performance (or get earlier at work).
I want hydraulic disk brakes, good quality gear set, and rather an aluminum frame.
I checked what local bike shops recommend, and I'm now hesitating between two options. Unfortunately, trying the bikes is not an option, as no shop has them in stock.
Stevens Strada 900 (2019)
It has quality components and is lightweight. I'll need to add mudguards and a rear carrier though, so it will be a bit heavier than the announced 9.4 kg.
Gears: 2 x 11 Shimano Ultegra R8000
Cube Editor black'n'purple (2019)
This one looks interesting to me because of the belt drive. This would make the rides smoother, and avoid loss of efficiency in the long run.
Gears: Alfine 11 gear hub
I read posts with figures about the gear ranges of both systems, but I'm having trouble getting a clear picture. Some articles: stackExchange post, internal gear rations measurement, this post and that one.
- How likely am I to get in situations where the speeds of the Alfine 11 gear hub don't switch correctly anymore?
- Are the 2 kg less from the Stevens likely to make a noticeable difference in terms of energy efficiency?
- Will any of the bikes above provide a range of speeds comparable with what I currently have (mid-end 3 x 8 derailleur)? I had the opportunity to try a bike equipped with a Shimano Nexus 8 gear hub, and there were definitely not enough 'high' speeds. This would prevent me from riding fast enough on flat lanes, or downhill.
Or to summarize, perhaps: more lightweight bike with derailleur or Alfine 11 gear hub, which would you recommend for my use case?
Any input and tips appreciated.
P.S.I also read the answers to How to improve my performance on a commute? and will probably follow some of the recommendations in there, like getting clipless pedals.