Best Road Bike Under 4k

November 5, 2026

Best Road Bike Under 4k? Meet the XLAB RS7 105 DI2!

Best Road Bike Under 4k

Carbon frame. Carbon wheels. Shimano 105 Di2. Power Meter. All for Under $4,000!

Sounds too good to be true? Meet the XLAB RS7 105 DI2, an impressive road bike that delivers performance well beyond its price tag.

If you’re looking for your first carbon road bike, or upgrading to electronic shifting without spending a fortune, the XLAB RS7 deserves a look and a test ride.

Stiff, responsive and surprisingly smooth, the RS7 is built for riders who love pushing the pace on a bunch ride or enjoying a long weekend in the saddle.

And here’s something that might surprise you: XLAB bikes are ridden at the highest level of professional cycling by WorldTour team XDS Astana!

Key Specifications

  • Frame & Fork: Toray T-700 carbon frame and T-700 carbon fork with a 100x12mm thru-axle
  • Weight: 8.49 kg (Size L)
  • Groupset: Shimano 105 (Mechanical RD-R7100 / FD-R7100 or wireless 105 DI2 options)
  • Crankset: Branta Alloy Power Meter Crankset (52-36T) with Apple Find My anti-theft 
  • Cockpit & Seatpost: Branta carbon integrated handlebar/stem and aero carbon seatpost
  • Wheelset & Tyres: Branta C45 base carbon wheelset with 700x32C tyres

XLAB pairs a carbon frame with Shimano 105 DI2 electronic shifting to give you a performance focused road bike.

Whether you’re upgrading from an older bike or buying your first carbon road bike, the RS7 gives you a lot to consider without pushing you into the top end of the market.

Shimano 105 DI2 Electronic Shifting

Best Road Bike Under 4k Shimano 105 DI2

The Shimano 105 DI2 groupset is one of the main attractions of the RS7. Once you’ve experienced electronic shifting, it’s hard to go back!

Press a button and the gears change quickly and precisely. You don’t need to push a mechanical lever through its full travel, and you get consistent shifting when you change gears on a climb, accelerate out of a corner or settle into a steady pace.

Shimano 105 DI2 also brings electronic shifting within reach without the extra cost of Ultegra Di2 or Dura-Ace DI2.

With electronic shifting, you can concentrate on the road, choose your gear and keep riding.

How Does the RS7 Suit Everyday Riding?

You don’t need to race to enjoy the RS7. Take it out for your regular training rides, join your mates for a bunch ride or spend a few hours exploring the local roads.

The carbon frame gives you a performance focused foundation, while Shimano 105 DI2 handles the gear changes. Together, they make the RS7 an option for riders who want a capable road bike for a mix of riding.

You can also change the bike as your needs develop. Fit different wheels or tyres to suit your preferences, or look at cockpit upgrades to fine tune your riding position.

Start with the right frame size and setup. A bike that fits properly helps you ride comfortably and make the most of your time on the road.

See the XLAB RS7 105 Di2 at Happy Wheels, Sydney

Come and see us at Happy Wheels in Waterloo and take a closer look at the XLAB RS7.

Tell us how you ride, what bike you’re currently using and what you’d like to improve. We’ll help you work through sizing, setup and the features that matter to you.

Give us a call on 02 8385 9997, send us an email or drop into the shop for a chat.

Happy Wheels
Shop 2, 356 George Street, corner of Allen Street
Waterloo NSW 2017

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Contact Us

Shop 2, 356 George Street
Waterloo NSW 2017

ph: +61 2 8385 9997

happywheels.com.au