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Shimano SM-EW90-A Dura Ace 9070 Di2 Junction-A 3 port

£104.99
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Product Description

Key Features:
  • The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but gives effortless gear shifts
  • This junction A is required to connect the shifters via E-tube wires to the down tube junction wire
  • 5-port design, one for down tube wire to bottom bracket junction, four for shifter connection. Ideally suited for TT/triathlon with multiple shifter positions
  • Battery level indicator feature
  • E-tube EW-SD50 wires not included
  • Additional charging point when using internal battery
  • Gear index setup switch to allow fine tuning via shifter buttons
  • Reliable and secure water resistant connectors
  • Stem mounting strap included

Occasionally, without notice, manufacturers change product design and/or specifications.

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Computers Guide

What type of computer should I use?

Wired Computer Wireless Computer GPS Computer
  • Most affordable
  • Manually connects to your speed / cadence sensors
  • No issue of interference impacting data
  • Basic performance features
  • Mid-range
  • No wires (improves aesthetics)
  • Easy swap between bikes
  • Basic & advanced features
  • Smartphone connectivity (ANT+ / Bluetooth Smart)
  • Mid-range / Premium
  • No wires
  • Easy swap between bikes
  • Basic & advanced features
  • Smartphone connectivity
  • (ANT+ / Bluetooth Smart)
  • Accurate distance & altitude data

Common Computer Features

Basic Features Advanced Features
  • Speed
  • Average Speed
  • Max Speed
  • Cadence
  • Max Cadence
  • Ride Duration
  • Distance
  • Odometer
  • Heart rate monitor connectivity
  • Max heart rate
  • Altitude
  • Total ascent
  • Total descent
  • Temperature
  • Maps / GPS Route Plan
  • ETA at destination
  • ANT+ / Bluetooth Connectivity
  • Wi-Fi

Can I pair my cycle computer with a smartphone, power meter and other devices? 

You will need a wireless computer to sync with other devices. Most wireless computers sync using 2 wireless technologies – ANT+ & Bluetooth Smart.

ANT+

ANT+ enabled devices to talk to each other and present the information on a compatible device.

Bluetooth Smart

Bluetooth Smart is a low energy wireless technology designed for smart sport and fitness. The long battery life in sensors makes it ideal for regular use in cycling. 

Always check your smartphone’s OS and 3rd party devices are compatible.

Would a Watch / Fitness band be better for me?

If you’re looking for something more versatile then cycle watches are a great alternative. You can still gather data from cycling sensors, but you can also gather data for different sports too. They are great for triathletes and those that do multiple sports. 

You can easily transfer data from a road bike to a mountain bike, from running to swimming. There aren’t many outdoor exercises you can’t track.

What software & Apps should I use?

Strava

Strava is perhaps the most well-known cycling App / software around. All you need is to record your cycling with a compatible GPS device, upload it to Strava and then you can analyse your data. You can compare your performance to previous efforts, your mates and even pro riders - all of this, for free.

Garmin Connect

All Garmin computers and devices will work with Garmin Connect. This is an online service that allows you to analyse your performance data, and share it with your friends. Reports show you how you’re progressing and you can use the calendar feature to plan your training sessions over time. 

Finance

How do I apply for finance?

Spend £99 or more at Tredz and you can spread the cost. Pay monthly over 6-48 months, interest free (dependent on repayment terms and amount).

1Fill your basket with everything you want from Tredz and go to the checkout.

2During checkout, select the finance option you want as your method of payment.

3You will be sent to our finance provider's secure server to complete your application.

4Finance providers PayPal & V12 will use the information provided to make a decision and complete checkout if you are approved.

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Representative example: If total purchase price is £1,399.00 with a deposit of £139.90 (10%) and your selected term is 36 months Classic Credit (15.9% APR fixed), you would pay £43.55 per month. Total charge for credit will be £308.70 and total amount repayable is £1567.80, subject to terms and status.

Delivery & Guarantee

UK Delivery Information

Please Note: Due to the current circumstances we are experiencing high demand so we may take a little longer than usual to despatch your order. Our Warehouse and Bike Build team are up and running as normal and we are taking active measures to ensure that we are following the government guidance with social distancing and additional health & safety measures have been put in place throughout the business. Please rest assured we will do everything we can to get your order to you as quickly as possible.

We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the UK, regardless of the size and on all orders over £20.

Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.

Please note that Pre-Order dates can sometimes change due to updated stock information.

Click here for more UK and international delivery information.

Returns & Warranty

It's easy to return a product with our 365 day, hassle free returns. 

We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).

Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.

If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.

For more information please visit our Returns & Warranty page.

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