Try a Shimano Di2 group is often hooked! But if you do not get a bike test or loan, here’s what you can get an electric transmission.
For the cyclist, the benefits of an electric group
- Speed changes of passing faster and always in the same way in DI2.In mechanics, the hand pushes a lever that pulls a cable, which itself moves the derailleur. So if you’re tired and we more gently pushes the lever, the Gearshift will be slower.
- In extreme conditions (cold, mud cyclocross) the gear change is not slowed or impossible because the engines are more powerful than the “elements”.
- Automatic adjustment of the front derailleur prevents friction of the chain on the fork.This is a significant peace of mind!
- Some users note a higher cadence with the electrical with the mechanical because they “do not hesitate” more to change gears.
Indeed such users are therefore less fatigue on long trips. They are not afraid to change gears because it passes quickly, even pedaling force and the risk of derailing is zero or almost. This does have an impact on how people drive with their fatigue and ultimately output. nevertheless difficult to quantify precisely, especially as changing gears becomes almost a game, especially seeing the output companions turn when the derailleur moves to “whistling” to realign the fork.
>> Shimano Di2: Focus on electric transmission
It is difficult to estimate what proportion of cyclists who take the plunge electric after trying on a bike test because the purchase is not always directly in stride.
Nevertheless Shimano France implemented last year of test bikes at no less than 180 retailers and all customers who have tried say their next bike would be electric. According to officials, ” it will take some years, but clearly in five years at a level of more than 2500 euros, the power will be present with an overwhelming majority. ”
>> Dossier: The bicycle’s transmission system
Heavier than the mechanical … even for the wallet
To a neighbor budget, the user is right to hesitate between a mechanical Dura Ace and an electric Ultegra. Here is what can tip the balance for one or the other, having of course a framework suitable for both:
- Electrical group whatever works better, faster, less tiring to handle a mechanical group.But it is also heavier. For business, weight is important and 500 g of a gap betweenmechanical Dura-Ace and Ultegra DI2 is notable. For an amateur, it is less than the weight of a can. Not to mention that if thepurchasing budget is equivalent, maintenance is more expensive Dura-Ace, where 1 cassette such costs the price of 2 Ultegra cassettes.
- So it’s hard to choose, because on one side there is a technological advantage with the power, the other a weight advantage.
This is where the details of the price and weight of each of the references:
- 2380g / 900 € for a mechanical Ultegra 11v 6800, 2480g / 1900 € forUltegra DI2 6870 11v.
- 1980g / 2000 € for a mechanical Dura Ace 9000 11v, 2080g / € 3300 for Dura Ace 9070 DI2 11s.
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