Claudio Posted October 9, 2013 Posted October 9, 2013 The most vulnerable part of your bicycle and the one that most bicycle manufacturers seem determined to keep: the derailleur. Why? Is there a benefit over internal gearboxes? Are gearboxes a luxury that we can do without, or are they something that manufacturers should have jumped on years ago?Click here to view the article
Gerlach Posted October 9, 2013 Posted October 9, 2013 Gee nog so tussen 5 en 10 jaar, dan sal dit meskien behoorlik in werk gestel word. Daar word al n tyd lank op DH fietse al getoets, met groot sukses so ver.
jugheaddave Posted October 9, 2013 Posted October 9, 2013 I was discussing this just yesterday. I think it comes done to price vs weight vs reliability. One a balance of all 3 has been achieved, I think we will see more "gearboxes"
LanceB Posted October 9, 2013 Posted October 9, 2013 Would be fantastic if ZF got involved: German engineering and sufficient production scaling to ensure efficient supply. Perhaps they could poach some of the SRAM XX designers, who are German anyhow. The current MTB transmission providers would not be keen on a durable solution, though, lots of exposed little working parts in an off-road usage environment, pretty much equates to an evergreen income stream. The SS brigade is obviously chuckling at all this. As is their right, I guess.
Gerlach Posted October 9, 2013 Posted October 9, 2013 https://www.google.co.za/search?q=gearbox+downhill+bike&source=lnms&tbm=isch&sa=X&ei=ThhVUqK1OYvv0gXaiYDADw&sqi=2&ved=0CAcQ_AUoAQ&biw=1600&bih=756&dpr=1
Jewbacca Posted October 9, 2013 Posted October 9, 2013 I do a bit of work with the Rohloff stuff and they are not durable. For a commuter or a general cruiser they are fantastic but if you thrash them and expect them to last under race conditions they will fail. Once they fail good luck repairing on the trail! Weight vs durability vs practicality says they still have a LONG way to go. To the Down hillers out there, why don't you try in out? It might suit you...... Shifting under stress but not too much stress like riding up hills..  LanceB, I am indeed chuckling at this. Well played sir. Ooh, on another note, check out the 2014 BMW e-cruisers........ If you have 30 gears you might as well have one of these........
Andyr249 Posted October 9, 2013 Posted October 9, 2013 I think the main issue would be weight as well as some sort of clutch system. With the derailleur system we essentially have a clutch system but without the weight. Would be interesting to see where this goes. Also how you would be able to remove the rear wheel to sort out a puncture quickly.
braailegend Posted October 9, 2013 Posted October 9, 2013 Had a gearbox bike.. was awesome, no maintenance. Rearwheel removal easier on frame mounted gearbox, same as singlespeed. And not that heavy, remember you're losing a cluster. Also the frame mounted box distributes weight more evenly, making wheels even lighter! Once I've saved enough, Im definitely going gearbox again (on a Nicolai).
GLuvsMtb Posted October 9, 2013 Posted October 9, 2013 You need to add electric shifting into the equation. Expect to see more electric shifters on the mtb scene in the next year or 2.
Jewbacca Posted October 9, 2013 Posted October 9, 2013 Chains are long due for replacement... You can run a carbon drive on a gearbox hub....
Claudio Posted October 9, 2013 Author Posted October 9, 2013 So which is the rohloff to go for....Rohloff currently only offers the Speedhub 500/14 as shown above.
rouxtjie Posted October 9, 2013 Posted October 9, 2013 Rohloff currently only offers the Speedhub 500/14 as shown above.Yea quickly went through their, find your rohloff hub app, quite usefull.
Ed-Zulu Posted October 9, 2013 Posted October 9, 2013 ...and while we at it, why not drop the belt drive and go internal shaft drive...everything nicely sealed up, no more hassles Claudio 1
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