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tttoon tttoon is offline
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Join Date: Apr 2013
Posts: 95
Quote:
Originally Posted by svandamme View Post
no need to hack anything...just wash out the 78 BT channels you don't use with a stronger transmitter and it goes tits up..

I really don't see the added advantage BT brings in this application..
How much weight savings does BT bring over , say a 3-4 steel cable??

And if it is a weight saver.. who benefits?? you only need the weight savings if you climb a lot. Most hobby cyclers ride flat roads.. I see it all the time here, in Flanders.. 6000 euro bikes.. and going for every gram.. but not a mountain to be found within 350 km's...

But ok, let's say the BT system saves 50 grams..
And let's say you want that 50 grams

Why does it have to be wireless if the application has both ends connected by a frame anyway?? Wireless is a complication compared to a simple communication wire.

How much does a 3-4 feet communication wire weigh ???
you can sabotage BT quite easily. Just wash out it's frequency with a bigger transmitter.

A wire doesn't weigh 50 grams more then a BT transmitter and receiver does.
And you can't wash it out.

https://www.thesignaljammer.com/blog/what-is-a-bluetooth-jammer-and-how-do-i-use-it/

KISS principle applies.
The weight is not really a factor since most high level bikes are on the minimum UCI weight limit (6.8kg) anyway, and need ballast to be legal in a race.

Mechanical groupsets need constant fiddling to shift accurately because of stretch and friction in the cable. There is no comparison in shift quality and ease of maintenance, electronic shifting is just much more precise. Everytime you select a gear the rear mech stops in exactly the same place with an electronic system.

Additionally, the lack of cables keeps the airflow cleaner and makes installation much easier. With a SRAM groupset you can always swap around the front and rear derailleur batteries if the rear one goes flat, and you get plenty of warning of that happening.

I ride around in Flanders too and there's more than enough (admittedly short) sharp hills to be found if you look for them that make a light bike worthwhile. That, and the weather is bad enough for me to really appreciate the no fuss maintenance of my groupset.
Old 10-02-2020, 05:15 AM
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