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ANOTHER SEASON, ANOTHER FASTEST JERSEY CASTELLI HAVE EVER MADE

After starting the aero jersey revolution in pro cycling, we've contiued to perfect this piece. While the 2015 Aero Race 5.0 Jersey represented the biggest leap forward in terms of race performance, the new 5.1 model builds on the race-leading aerodynamics while making the jersey more comfortable and durable. Updated fabrics on the front and back showed a 2 watt gain in the wind tunnel. But it's not just aero; it's also extremely light, coming in at just 103g. That's about 40g lighter than a standard jersey and almost as light as out Climber's Jersey. Just like you, our pro riders are looking for comfort, and the lightweight polyester fabrics in this jersey dry nearly instantly, making this the go-to choice even for cool- or wet-weather racing, while the compression band around the pockets keep them from moving or bouncing no matter how you load them up.

  • The most aero jersey Castelli have ever made
  • Velocity dimpled fabric on front
  • 3D mesh on back to prevent overheating
  • Mesh arm bands
  • Compression band around waist keeps 3 rear pockets in place
  • Silicone gripper elastic
  • Full-length YKK Camlock zipper
  • Reflective heat-transfer viz strip

Delivery Information

Hargroves Cycles offer Free Delivery for all orders over £9 with in Mainland UK (orders below £9 will be charged £1.99)

Current disptach time of UK Bike orders is 5-7 days.
In Stock Clothing, Parts and Accessories are usually delivered within 2-4 working days, often sooner.

Bikes and Bulky items are sent via TNT Courier and smaller items are sent via Royal Mail 2nd Class Post.

Items over £50 are sent with Royal Mail 1st Class track able service which is emailed to the customer on the day of dispatch.
For full delivery details please see our Delivery Page

International Delivery

Hargroves Cycles delivery all across Europe. Goods are shipped from the UK and are subject to import duties where applicable

For further delivery, pricing and restriction information please view our International Shipping Page

Returns Information

We will happily exchange or refund any item purchased at Hargroves Cycles within 365 days, except gift vouchers and personalized products, except where faulty.

Returned goods must be unused and supplied with their original packaging, unless faulty.

For full details on our Returns procedure please visit out Returns Section.

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After a brief but promising cycling career, Maurizio created his eponymous brand in 1974 and a series of firsts would follow: the first Lycra shorts used in racing and sold to the public, the first colored shorts, the first sublimation printed jerseys, the first synthetic winter clothing, the first use of windproof membranes, the first hydrophilic fabric treatments, the first anatomic seatpad, the lightest jersey ever produced, and the most aerodynamic jersey ever produced. Maurizio’s vision was to be at the forefront of technology, performance and design. Maurizio Castelli died in 1995 while cycling up the Cipressa climb, the next-to-last hill in the Milano-San Remo course.

Today, Castelli is dedicated to continuing Maurizio’s dream: to create the most innovative clothing for the cyclist seeking maximum performance.

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To avoid disappointment please contact the store before visiting to confirm current stock or to arrange to transfer items to desired store. Bikes require additional checks and this may affect estimated dispatch times.

  • Castelli Aero Race 5.1 Jersey