Di2 firmware upgrade
- grimbo
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Di2 firmware upgrade
Postby grimbo » Sat Apr 06, 2013 10:14 pm
With this upgrade, they can program it to move in 5 speeds: very slow, slow, normal, fast and very fast. The guy in the shop reckons, why wouldn't you just choose the very fast option. Usually if you want to dump (or add) a bunch of gears, you want to do it as quickly as possible.
You can also program in the maximum number of cogs to move on a single long key press, from just 1, to the max. Again, I can't think why I wouldn't just chose the max setting.
Has anyone else had experience with these settings, and any recommendations as to their pros and cons?
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Re: Di2 firmware upgrade
Postby kunalraiker » Sat Apr 06, 2013 11:04 pm
- MarkG
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Re: Di2 firmware upgrade
Postby MarkG » Sat Apr 06, 2013 11:18 pm
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Re: Di2 firmware upgrade
Postby alex » Sun Apr 07, 2013 2:05 am
if you want to experiment with the shift speed and how many shifts you can make with one press of the button you might be better buying the interface box yourself so you can make changes whenever you want ... and for future firmware updates
http://www.evanscycles.com/products/shi ... 2-ec047044" onclick="window.open(this.href);return false;
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Re: Di2 firmware upgrade
Postby hooman » Sun Apr 07, 2013 5:01 pm
alex wrote:how much are they charging to do it?
if you want to experiment with the shift speed and how many shifts you can make with one press of the button you might be better buying the interface box yourself so you can make changes whenever you want ... and for future firmware updates
http://www.evanscycles.com/products/shi ... 2-ec047044" onclick="window.open(this.href);return false;
This is an Ultegra interface, is there a DA interface or are they compatible?
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Re: Di2 firmware upgrade
Postby alex » Sun Apr 07, 2013 6:10 pm
not sure what the part number is for the early 'large cable' di2
- grimbo
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Re: Di2 firmware upgrade
Postby grimbo » Sun Apr 07, 2013 10:33 pm
I'm not much of a fiddler, so I just can't see me getting much use out of having the interface box. Also, bike related purchases are a bit of a sore point in the Grimbo household, but servicing is tolerated ("it's for safety").alex wrote:how much are they charging to do it?
if you want to experiment with the shift speed and how many shifts you can make with one press of the button you might be better buying the interface box yourself so you can make changes whenever you want ... and for future firmware updates
http://www.evanscycles.com/products/shi ... 2-ec047044" onclick="window.open(this.href);return false;
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Re: Di2 firmware upgrade
Postby Eleri » Mon Apr 08, 2013 12:19 pm
Conceivably from the top to the bottom in one go. It goes in single gears though. I think you can get it to do 2 at a time but not much value in that IMO.
I like it - mostly changing up to a bigger gear when I crest a hill and want to slam down the other side.
Didn't cost much, just got it done when I had it serviced before a big ride.
- jules21
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Re: Di2 firmware upgrade
Postby jules21 » Mon Apr 08, 2013 12:39 pm
- vbplease
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Re: Di2 firmware upgrade
Postby vbplease » Mon Apr 08, 2013 12:50 pm
I'm curious to know why you would want to put it to the max setting??grimbo wrote:You can also program in the maximum number of cogs to move on a single long key press, from just 1, to the max. Again, I can't think why I wouldn't just chose the max setting.
For such a dramatic change in grade you'd be changing between your big/small chainring first wouldn't you? and there will always be a transition in the grade where your speed changes over time. Usually two gears at a time at the most - to maintain a consistent cadence I would have thought?
Wanting to change 10 gears in one go makes me think you're
1) riding exclusively in your small chainring,
2) crossing the chain
3) making guesswork of the ideal gear you should be in when you get a change in grade?
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Re: Di2 firmware upgrade
Postby Eleri » Mon Apr 08, 2013 12:59 pm
The way mine is set up you can change up to 10 gears. Mostly I change 3 or 4 and I've made most use of it when there is a sudden change of conditions. Either cresting a hill in which case I do want to change quickly. I also use it when stopping from speed at the lights and changing down so I'm not starting in the biggest gear. And finally, when racing in a final sprint, good to go up quickly as I'm about to get out of the saddle. Depending on the course I'll go up maybe 4 gears at that point.vbplease wrote:I'm curious to know why you would want to put it to the max setting??grimbo wrote:You can also program in the maximum number of cogs to move on a single long key press, from just 1, to the max. Again, I can't think why I wouldn't just chose the max setting.
For such a dramatic change in grade you'd be changing between your big/small chainring first wouldn't you? and there will always be a transition in the grade where your speed changes over time. Usually two gears at a time at the most - to maintain a consistent cadence I would have thought?
Wanting to change 10 gears in one go makes me think you're
1) riding exclusively in your small chainring,
2) crossing the chain
3) making guesswork of the ideal gear you should be in when you get a change in grade?
I keep no mental note of what gear I'm in - I'm more likely to ride to a cadence. I suppose that's "guessing" I'm more focused on staying on getting on top of the gear rather than some sort of calculus of what I should be in.
- grimbo
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Re: Di2 firmware upgrade
Postby grimbo » Mon Apr 08, 2013 1:13 pm
I don't think I would ever go the whole 10 gears. But maybe sometimes I would want to go 2, sometimes 3, sometimes 5? So why set a limit - once I get used to the movement, I should be able to judge the ideal time to release the button. Which is kind of the crux of my question - if it's on "very fast", is that a hard judgement to make.vbplease wrote:I'm curious to know why you would want to put it to the max setting??grimbo wrote:You can also program in the maximum number of cogs to move on a single long key press, from just 1, to the max. Again, I can't think why I wouldn't just chose the max setting.
For such a dramatic change in grade you'd be changing between your big/small chainring first wouldn't you? and there will always be a transition in the grade where your speed changes over time. Usually two gears at a time at the most - to maintain a consistent cadence I would have thought?
Wanting to change 10 gears in one go makes me think you're
1) riding exclusively in your small chainring,
2) crossing the chain
3) making guesswork of the ideal gear you should be in when you get a change in grade?
- vbplease
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- Location: Brisbane
Re: Di2 firmware upgrade
Postby vbplease » Mon Apr 08, 2013 1:29 pm
Sounds good to me - riding to a particular cadence.Eleri wrote:I keep no mental note of what gear I'm in - I'm more likely to ride to a cadence. I suppose that's "guessing" I'm more focused on staying on getting on top of the gear rather than some sort of calculus of what I should be in.
The guesswork I was reffering to (not in your case) was changing up to 10 gears in a go, not sure which one you need, but finding out when you get there?
- vbplease
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Re: Di2 firmware upgrade
Postby vbplease » Mon Apr 08, 2013 1:34 pm
From your earlier post I thought you were saying a long press would be programmed with a certain number of gear changes?grimbo wrote: once I get used to the movement, I should be able to judge the ideal time to release the button.
If it's just "time" pressing the lever then fast or very fast makes sense to me.
- grimbo
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Re: Di2 firmware upgrade
Postby grimbo » Mon Apr 08, 2013 2:52 pm
Ah, yes - not very well phrased by me. I meant to say that you can program a maximum number of gears to change at one press.vbplease wrote:From your earlier post I thought you were saying a long press would be programmed with a certain number of gear changes?grimbo wrote: once I get used to the movement, I should be able to judge the ideal time to release the button.
If it's just "time" pressing the lever then fast or very fast makes sense to me.
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Re: Di2 firmware upgrade
Postby dale79 » Mon Apr 08, 2013 3:43 pm
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