Shimano Dura-Ace Di2

Harald Troost from Shimano Europe talks us through the new electronic Dura Ace. Find out more at www.road.cc

Category:

Sports

Tags:

• cycling
• shimano
• dura
• ace
• road.cc

[FlyTheBlueSky]

Duh; two reasons why this system is not dumb: shifting speed and auto-trim.

[snifnscratch]

One of the beautiful things about the bicycle is its simplicity, and in this respect di2 goes too far. I have to plug my phone in to charge it, and my tv, house lights, microwave oven, computer and kettle also need electricity. When I ride my bike I want to leave electronic equipment at home where it belongs. I dont take my phone with me either - I wouldnt want anyone to ring me, even if I`ve won the lottery

[yenrodtheoriginal]

@snifnscratch Its 2012 yuh know mate ???!!!!

[versanil]

Have they fixed that really annoying problem of the indexing system going out of sync every 5 bloody minutes? I guess with computer control they could possibly avoid miss shifts.

Before we get too excited this is still an unbelievably crude mechanism, moving a chain from one cog to another has been around for over a hundred years. I've had enough of it, hub gears on the next bike.

[davidwill6]

@reparatorii no, i'd love to test the new campy, but i haven't been able to yet. I know it's not ideal to change gears at full force, but at least it's possible, if needed in a climb or sprint in a race if you find yourself in the wrong gear

[davidwill6]

@reparatorii no, i'd love to test the new campy, but i haven't been able to yet. I know it's not ideal to change gears at full force, but at least it's possible, if needed in a climb or sprint in a race if you find yourself in the wrong gear

[reparatorii]

@davidwill6 Have you tested Super Record Campagnolo? Bytheway, the "pedaling at full force" it's still bad cause it's stress hugely your gears, even with the Di2.

[davidwill6]

@bujablaster that's what i thought before i bought it, but the difference is that with Di2 the derailleur is moved with a steady force, which does two things, it makes the gears switch faster, and it means that even while you're switching gears you can still be pedaling at full force and your pedals won't drop like they would on a normal system

[bujablaster]

@davidwill6 btw: yes, sure you can shift gear at full pedal force. You can do this even with standart cable-pulled rear/front deraileur too :) But your sprockets on casette and chain too will not like it :) And it seems same to me on Di2.

[bujablaster]

@davidwill6 wanna see it. It is not gearbox, it is still same gear-changing principle, difference is only that it is driven not by mechanical cable but by electric pulses. But still when you shift your gear you need to turn round cranks to get chain on right (shifted to) sprocket.

So show it what are you talking about ... or it doesn't exist ;)

[davidwill6]

@eshneto ya you can, i just bought Di2s and you CAN change at full force, it's one of the main reasons i bought it, so i could shift while standing and climbing