Specialized Venge Vias Disc Custom build
Discussion
I need the forums advise on the following.
I'm having a shop build me a custom Venge Vias disc using the new Dura-Ace DI2 9170 hydro group-set.
This bike has been on order since last Autumn, with the delay being on the new Dura-Ace components.
Everything has arrived now apart from the Dura-Ace power meter cranks, which I've been told is going to be September earliest.
The bike shop has offered to fit the standard 9100 Dura-Ace cranks, which are available straight away. If I accept this, I've been told that the power meter cranks can't be retro-fitted. The other option is to choose a third party power meter crank.
I'm inclined to go for the standard 9100 crank, as I wont be racing the bike so maybe will never need the benefit of a power meter, but I'm not sure if I may later regret this decision.
So what would you guys do?
I'm having a shop build me a custom Venge Vias disc using the new Dura-Ace DI2 9170 hydro group-set.
This bike has been on order since last Autumn, with the delay being on the new Dura-Ace components.
Everything has arrived now apart from the Dura-Ace power meter cranks, which I've been told is going to be September earliest.
The bike shop has offered to fit the standard 9100 Dura-Ace cranks, which are available straight away. If I accept this, I've been told that the power meter cranks can't be retro-fitted. The other option is to choose a third party power meter crank.
I'm inclined to go for the standard 9100 crank, as I wont be racing the bike so maybe will never need the benefit of a power meter, but I'm not sure if I may later regret this decision.
So what would you guys do?
No idea why they can't fit the cranks when they arrive and maybe give you a loaner set for now, there shouldn't be a reason they can't. If you're never going to use the power data, just put the standard cranks on. If you want power now, there are plenty of options from Quarq, Power2Max, Infocrank etc which will do the job.
Why wouldn't they be able to retro fit them? Do they mean "Once you've ridden on the standard cranks, we won't swap them for the power meter ones without charging you full price for both"?
If so, you could fit some cheaper cranks for now (105?) just to tide you over, then switch to the power meter crank when it arrives?
If so, you could fit some cheaper cranks for now (105?) just to tide you over, then switch to the power meter crank when it arrives?
A loaner set sounds like a good idea, if the shop will co-operate.
The way it was explained to me by the shop mechanic, who seemed to know what he was talking about, is that if he installs the 9100 cranks he can't see how they can be later swapped out for the power-meter version; mis-match of components.
I'm not familiar with the components in question, or seen the assembly drawings, to know if this is a fair comment or not.
The way it was explained to me by the shop mechanic, who seemed to know what he was talking about, is that if he installs the 9100 cranks he can't see how they can be later swapped out for the power-meter version; mis-match of components.
I'm not familiar with the components in question, or seen the assembly drawings, to know if this is a fair comment or not.
I had it confirmed by Shimano technical support today that the Dura-Ace DI2 9100 cranks are not interchangeable with the power meter ones.
They did suggest getting the shop, as an interim measure, to fit either 105 or Ultegra ones.
I'm waiting for them to come back to me with a price if I decide to go down this route.
They did suggest getting the shop, as an interim measure, to fit either 105 or Ultegra ones.
I'm waiting for them to come back to me with a price if I decide to go down this route.
Ballistic said:
I had it confirmed by Shimano technical support today that the Dura-Ace DI2 9100 cranks are not interchangeable with the power meter ones.
They did suggest getting the shop, as an interim measure, to fit either 105 or Ultegra ones.
I'm waiting for them to come back to me with a price if I decide to go down this route.
I'm so confused. Surely these two statements are mutually contradictory?They did suggest getting the shop, as an interim measure, to fit either 105 or Ultegra ones.
I'm waiting for them to come back to me with a price if I decide to go down this route.
Usget said:
Ballistic said:
I had it confirmed by Shimano technical support today that the Dura-Ace DI2 9100 cranks are not interchangeable with the power meter ones.
They did suggest getting the shop, as an interim measure, to fit either 105 or Ultegra ones.
I'm waiting for them to come back to me with a price if I decide to go down this route.
I'm so confused. Surely these two statements are mutually contradictory?They did suggest getting the shop, as an interim measure, to fit either 105 or Ultegra ones.
I'm waiting for them to come back to me with a price if I decide to go down this route.
1. buy a different set of power cranks and get on with riding;
2. fit standard new DA cranks; or
3. fit standard lower spec cranks as an intermediate step whilst waiting for the power version of the DA cranks to arrive.
Out of those, I'd probably just buy a different set of power cranks (Quarq D4 with DA chainrings if I was set on DA everything) or get the bike shop to loan you a set of cranks as an intermediate step before the power DA cranks arrive. If I was paying as many ££££ to my local bike shop as I suspect you are, I'd expect them to provide me with a loaner set for free
If you're dropping the kind of money that this level of build will cost at your local shop, you should be expecting them to be going out of their way to accommodate you (ie giving you a loaner DA chain-set, or taking the cost of the standard DA chainset of the price of the PM one as a PX when in arrives). If they're not playing ball in this regard, then i'd suggest you find a shop that values their high end customers a bit better.
If you are getting the standard DA chainset as part of whole groupset bundle, then you'd likely re-coup what it cost you, selling it on privately (ebay etc) in Sept' when your PM arrives.
If you're heart is set on the DA PM, then you will need to wait, but on such a high end build are you going to be happy spending the summer on a 105 chainset? I wouldn't be. If not, and power data is important to you, then, as previously suggested, go out and but an alternative PM (ie Rotor, Sram etc).
If you are getting the standard DA chainset as part of whole groupset bundle, then you'd likely re-coup what it cost you, selling it on privately (ebay etc) in Sept' when your PM arrives.
If you're heart is set on the DA PM, then you will need to wait, but on such a high end build are you going to be happy spending the summer on a 105 chainset? I wouldn't be. If not, and power data is important to you, then, as previously suggested, go out and but an alternative PM (ie Rotor, Sram etc).
Thank you Aybee for explaining my options in a better fashion than I was able.
My thoughts are that being as Shimano are struggling to bring the DA PM tech to market, I will probably just go for the standard DA cranks.
I don't want to be in a position after a few months with the PM cranks failing.
My thoughts are that being as Shimano are struggling to bring the DA PM tech to market, I will probably just go for the standard DA cranks.
I don't want to be in a position after a few months with the PM cranks failing.
After taking the advice given in this forum, I've managed to persuade the bike shop to loan me a set of Ultegra components until the DA PM bits arrive and the build should be finished next week.
The next step will be a bike fit and finally, after all this time, I can look forward to riding it.
Many thanks to everyone for your input, suggestions and advice.
The next step will be a bike fit and finally, after all this time, I can look forward to riding it.
Many thanks to everyone for your input, suggestions and advice.
Gassing Station | Pedal Powered | Top of Page | What's New | My Stuff