• Eastway Emitter Tiagra R4 Women's Road Bike

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Eastway Emitter Tiagra R4 Women's Road Bike

The Eastway Emitter R4 Women's Road Bike features a geometry and component package that are specifically structured for the female physique. It's the perfect introduction to a carbon fibre race bike and whether you’re entering local races, or just want to increase your mileage, the Emitter is the ideal choice. It’s the lightest and fastest in Eastway’s range and it offers great value and performance. However, this doesn’t mean it’s harsh and demanding as it balances a stiff power delivery with a smooth and compliant ride.

Shimano Tiagra Drivetrain

The Shimano Tiagra groupset builds on the technologies of its previous models and adopts some new ones from Shimano’s higher spec versions such as the crank’s 4-arm spider, giving you clean looks, fast and smooth shifting and excellent performance. The chainset comes with 50/34T compact chainrings, which with the 12-28T cassette, strikes just the right balance of ease of climbing with good top-end speed on the flat. The 10-Speed Tiagra STi levers offer much-improved ergonomics and smoother shifter and lever movement. Plus, with under-tape cable routing and a more comfortable brake hood, long distance rides are no problem.

Mavic Aksium Wheelset

The Aksium's may be one of Mavic's entry-level models, but they still feature some of the same top-end technology as seen on the top-end wheelsets. This means they deliver great performance, durability and a low weight. A strong, reliable set of wheels that just keep rolling.

Ritchey/Fizik Finishing Kit

To finish off this quality package, the Emitter is built up with a full Ritchey finishing kit, with matching bars, stem and seatpost. Lightweight, strong and reliable, Eastway has refused to cut any corners when completing this build. Topping it off, there’s a custom colourway Fizik Arione Donna saddle, a model that’s a common sight on many Pro bikes.


  • Frame: High-modulus T700 UD full carbon, internal cable routing, replaceable rear derailleur hanger
  • Fork: High-modulus T700 UD full carbon, tapered steerer, 9mm QR
  • Headset: Ritchey Integrated, tapered 1 1/8" to 1.5"
  • Stem: Ritchey OE, 45/48cm: 80mm; 51cm: 90mm
  • Handlebar: Ritchey Comp Logic II, 45/48cm: 380mm; 51cm: 400mm
  • Handlebar Tape: Lizard Skin DSP 2.5mm thick
  • Front Derailleur: Shimano Tiagra, braze-on
  • Rear Derailleur: Shimano Tiagra, 10-Speed
  • Shift/Brake Levers: Shimano Tiagra STI
  • Brakes: Shimano Tiagra 4700 calipers
  • Crankset: Shimano Tiagra 4700 50/34T, 45/48cm: 165mm; 51cm: 170mm
  • Bottom Bracket: Shimano BB86
  • Cassette: Shimano HG-500, 12-28T
  • Chain: Shimano 10-Speed
  • Wheelset: Mavic Aksium QR front and rear
  • Tyres: Continental Ultra Sport 700x25c (bike compatible with 700x28c without mudguards)
  • Saddle: Fizik Arione Donna
  • Seatpost: Ritchey OE 27.2mm
  • Seat Clamp: Alloy
  • Bottle Cage Mounts: Double
  • Warranty: 5-year frame warranty, 12-month parts warranty
  • Weight: 8.32/18.34lbs (48cm)

Easy Assembly

When you order a bike, one of our trained mechanics will carefully prepare and pack your bike for shipping. Upon delivery, the assembly is simple and all necessary tools are conveniently included in the box.

Depending on the delivery service and destination, bikes will either be delivered in a large or a small box. Below is a guide as to how your bike will arrive:

  • All bikes for delivery within the UK and Republic of Ireland will be delivered in a large box, except for kids’ bikes and BMX bikes, which are always delivered in manufacturer's boxes.
  • All bikes for delivery within the EU on a standard service will be delivered in a large box. If an express delivery option is chosen, your bike will be packed into a small box. Again, the exception is kids’ bikes and BMX bikes, which are always delivered in manufacturer's boxes.
  • All bikes for worldwide delivery outside the EU will be delivered in small boxes.

This video demonstrates assembly from a SMALL BOX.

This video demonstrates assembly from a LARGE BOX.

Buy Eastway Bikes from Chain Reaction Cycles, the World's Largest Online Bike Store.

  • Delivery costFREE
  • Delivery toUSA
  • 365 Days return or exchange

    If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.

    More information on returns
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