It's time to upgrade your cycling wardrobe and get your hands on limited-time deals this Amazon Prime Day. With savings to be made on big brands such as Altura, Giro and more, it's a great time to pick up the basics or splash out and treat yourself.If you're looking for more great savings on cycling, check out our round-ups of the best cycling deals, tech deals and Garmin deals.We've divided our pick into the best deals in the UK and USA.When is Amazon Prime Day?Amazon Prime Day starts at midnight on Tuesday, 16 July and continues until the end of Wednesday, 17 July. Well be updating you on all the deals as they become available.Prime Day is an exclusive event for Prime members. For 8.99 a month, you can access special discounts, next-day delivery, Prime Video, Music, Reading, and more. New members can also take advantage of a 30-day free trial. Dont miss out on Prime Day savings.Best Amazon Prime Day cycling clothes deals UKGore Men's C5 Jersey 99.99 34.17 (-66%)The Gore C5 Jersey scored 4.5 stars in our review. It's a lightweight, form-fitting layer designed for warmer weather, featuring a 3-piece back pocket and breathable fabric.Make sure to snag it at 66 per cent off this Amazon Prime Day.View dealEndura Men's Xtract Cycling Helmet 59.99 31.99 (-47%)The Endura Extract helmet is a good-value and versatile helmet with added LED light safety, scoring 4 stars in our review. It's reduced by nearly 50 per cent in the Amazon Prime Day sale.View dealEndura Men's Hummvee Plus Cycling Helmet 64.99 27.18 (-58%)Looking for a helmet that does the job without breaking the bank?We scored the Endura Hummvee helmet 3.5 stars for it's great value and decent performance. View dealFox Speedframe Pro Helmet 136.90 115.99 (-15%)A top-of-the-range lid with comfort and safety at the forefront, the Fox Speedframe Pro scored 4 stars in our review and is now available with a 15 per cent discount this Amazon Prime Day.View dealEndura Strike Waterproof Cycling Gloves 26 15.99 (-39%)Endura claims the Strike Waterproof Cycling Gloves offer a waterproof, breathable membrane, fast-dry insulating liner, durable synthetic leather palm with gel padding, and an extended cuff with Velcro adjuster. You can save 39 per cent on Amazon Prime Day.View dealHelly Hansen Men's Seven J Rain Jacket 100 58.22 (-42%)Save 42 per cent on the Helly Hansen Men's Seven J Rain Jacket. Designed with Helly Tech Protection fabric and sealed seams, it offers waterproof, breathable and windproof performance.Key specs include an adjustable hood, storm flap, anti-chafe chin guard and quick-dry lining.View dealHelly Hansen Men's Crew Hooded Waterproof Jacket 145 92.99 (-36%)The Crew Hooded Sailing Jacket with Helly Tech Protection combines waterproof, windproof and breathable features.The hood provides weather protection and packs into the collar when not in use. Enjoy 36 per cent off this Amazon Prime Day.View dealEndura Men's Xtract Gel II Bibshorts 64.99 41.99 (-24%)Stock up on cycling shorts this Amazon Prime Day with the Endura Men's Xtract Gel II Bibshorts.The Xtract fabric should provide quick-drying performance and the 400-Series antibacterial gel pad with micro-wick technology offers comfort.Selected seams are flat-locked for durability, while the seam-free inside leg and raw-edge hem band with silicone print grippers should ensure a comfortable fit.View dealGore C5 Opti Bib Shorts+ 59.99 45.34 (-22%)Save up to 22 per cent on the Gorewear C5 Opti Bib Shorts+ this Amazon Prime Day. These bib shorts feature a tight, bike-specific cut and a breathable, pre-formed, windproof front area.View dealEndura Men's Hummvee Shorts with Liner 48.95 38.99 (-20%)Save 20 per cent on the Endura Men's Hummvee Shorts. Crafted from durable Nylon mini-ripstop fabric, they include a ClickFast detachable liner with a 200 series pad for comfort.Features such as zip thigh vents with mesh inserts, zipped hand pockets, cargo pockets and a large rear map pocket enhance versatility and functionality.View dealEndura Men's 6-Panel II Shorts - 34.99 20.99 (-40%)Save up to 40 per cent on the Endura Men's 6-Panel II Shorts. These shorts are engineered with stretch technology and an antibacterial 200 series pad, while silicone leg grippers prevent riding up.View dealBest Amazon Prime Day cycling clothes deals USEndura Men's GV500 Long Sleeve Gravel Jersey $139.99 $69.99 (-50%)Crafted from a lightweight Merino blend knit, this Endura jersey is available with a huge 50 per cent discount for Amazon Prime members.View dealGore C5 Men's Cycling Bib Shorts with Seat Insert - $120 $108.49 (-10%)We've rated Gore's C5 line highly in our reviews, with scores of up to 4.5.Don't miss out on 10 per cent off these premium bib shorts during the Amazon Prime sale.View dealEndura Men's MT500 Thermal Long Sleeve Cycling Jersey $139.99 $36.32 (-74%)There's nearly 75 per cent off this Endura thermal jersey up for grabs. Stock up ahead of cooler seasons this Amazon Prime Day.View dealGore Men's C5 Thermo Jersey $130 $104 (-20%)The Gore C5 Jersey offers a slim fit and optimal performance with moisture-wicking, breathable fabric. Ideal for cold weather, it features a 3-compartment back pocket, extended back length and adhesive hem. Save 20 per cent when you sign up as a Prime member.View dealEndura Men's Hummvee Lite Mountain Bike Baggy Cycling Shorts $78.44 $48.96 (-35%)These Endura Hummvee shorts feature 4-way stretch nylon, a Clickfast detachable liner with a 200 series pad, hip pockets and a zipped thigh cargo pocket. Save 35 per cent now.View dealEndura MT500 waterproof cycling shorts $76.99 $65.99 (-14%)Save 14 per cent on the Endura MT500 waterproof cycling shorts with Amazon Prime. Made from nylon mini-ripstop fabric, they include a ClickFast detachable liner, multiple pockets, seamless seat panel, mesh ventilation and an adjustable waist.View dealEndura Men's FS260-Pro Aerogel Road Cycling Mitt $49.99 $33.31 (-33%)Save 33 per cent on Endura's Men's FS260-Pro Aerogel Road Cycling Mitts this Amazon Prime Day.Features include a full-finger terry sweat wipe and E-Swipe touchscreen-compatible fingers.View dealGore C5 Women's Shorts $100 $80 (-20%)Save 20 per cent on these Gore C5 Women's Shorts this Amazon Prime Day. Designed for warm-weather cycling, they offer rapid moisture wicking, breathable fabric and an adjustable waistband with Velcro.View dealWhat is Amazon Prime Day?Amazon Prime Day is a special event exclusively for Prime members, providing a wide range of incredible deals.Our team of expert deal scouts will be diligently monitoring the event to ensure Bike Radar readers get the best cycling deals available.To maximize your savings, take advantage of these additional offers:Amazon Music Unlimited: Enjoy three months freeindle Unlimited: Get a 30-day free trial and access your favourite books, audiobooks, and magazinesAmazon Kids: Access child-friendly books, films, and TV shows with a one-month free trialPrime Video : Try a 30-day free trial and discover your next favourite seriesFor even better savings, try the CamelCamelCamel extension to track the best prices.Only Prime members can access these premium savings, so make sure to sign up. Set up your Amazon Prime account and start browsing the bargains here.