Looking to upgrade your bike, or even invest in a whole new one? Lucky you, because Sigma Sports is running a flash sale packed with huge savings! Whether you’re looking to winterproof your bike, upgrade your bike, or pick up essential kit, there’s plenty on offer: including a huge £3,500 off a Campagnolo-equipped Basso road bike, £2,000 off the Specialized Aethos Expert, 38% off one of the most durable road tyres money can buy, and Assos Chamois Cream down to just £15.​

We’ve rounded up twelve of the best deals below, from bikes and tyres, to helmets, mudguards, and rear lights. These exclusive offers are live now, and all you have to do to access them is create a free Sigma+ account. Just head to the Sigma Sports website to grab the link to sign up… don’t miss out!

Huge £3,500 saving on the Basso Astra Chorus Bike, now down to £2,999

Basso Astra Chorus Bike
Basso Astra Chorus Bike (Image Credit: Sigma Sports)

The biggest saving in this roundup comes from the Basso Astra Chorus Bike, now less than half price with a huge £3,500 discount.

The Astra is a versatile all-round road bike, built for both performance and comfort with 35mm tyre clearance, integrated cable routing and a lightweight carbon frame. 

At £2,999, it’s not much more than the price of the Campagnolo Chorus groupset and Bora C19 wheels alone, making this complete bike exceptional value. If you want some Italian flare on your next road bike, it’s a stonking deal. 

Get the Basso Astra Chorus Bike for £2,999 (was £6,499) 

Just in time for winter, save 38% on the Vittoria RideArmor II TLR G2.0 Tyre, now £37 each

Vittoria RideArmor II G2.0 tyre
Vittoria RideArmor II G2 (Image Credit: Sigma Sports)

If you’re looking for tyres that can handle the harsher winter conditions, Vittoria’s RideArmor II TLR G2.0 is built for durability, comfort, and grip in all conditions. A standout feature is the ArmorSkin Sidewall Layer which is designed to offer excellent cut and abrasion protection. 

ArmorSkin Sidewall Layer – The ArmorSkin sidewall layer provides unparalleled cut and abrasion protection. This top-grade polyamide fabric, identifiable by its distinctive copper colouring, offers additional security on any road surface and in any weather condition.

Normally £60, you can now grab them for £37 per tyre in this flash sale. 

Pick up the Vittoria RideArmor II TLR G2.0 tyre for £37 

The Lazer Z1 KinetiCore Helmet is now £159, down from £230 

Lazer Z1 KinetiCore helmet
Lazer Z1 KinetiCore helmet (Image Credit: Sigma Sports)

Scoring a 9/10 in its road.cc review, the Lazer Z1 KinetiCore helmet is a comfortable, well-vented helmet that comes with excellent safety credentials, although at its RRP it comes with an elite-level price tag. 

The main safety feature is Lazer’s KinetiCore, which is designed to protect you against both direct and rotational impact. You get EPS (expanded polystyrene) foam blocks built into the helmet that buckle on impact and absorb energy that would otherwise be directed towards your brain.

Right now, you can save 31%, bringing this high-end helmet down to £159 from £230.

Grab the Lazer Z1 KinetiCore Helmet at a 31% discount

£2,001 off this featherweight Specialized Aethos Expert Rival eTap AXS 

Specialized Aethos Expert Rival
Specialized Aethos Expert Rival (Image Credit: Sigma Sports)

Specialized has recently refreshed their lightweight Aethos range, and that means there are some great deals on the outgoing (but very good) 2025 models. 

The Expert Rival eTap AXS build is now a great deal – over £2,000 off, bringing the price down to £3,499.

The Expert shares the same ultralight frame as the higher-end Pro model, but comes equipped with a more accessible SRAM Rival eTap AXS groupset, Roval C38 wheels, and S-Works Turbo 28mm tyres. 

Get the Aethos Expert Rival eTap AXS and save over £2,000

26% off Trek 700c NCS Mudguard Set

Trek NCS mudguard set
Trek NCS mudguard set (Image Credit: Sigma Sports)

A wet backside on a ride is never pleasant, so a set of mudguards is an easy way to keep spray off yourself and anyone riding behind you. The Trek 700c NCS Mudguard Set comes fully assembled and ready to fit, made from polycarbonate with reinforced stainless steel hardware.

There are four sizes available to accommodate tyre widths up to 55m, and the mudguards also feature an integrated Blendr mount for you to attach a Trek Flare rear light if you have one. .

Buy the Trek 700c NCS Mudguard Set for £37 

Assos Chamois Cream 200ml now only £15 

Assos Chamois Cream 200ml
Assos Chamois Cream 200ml (Image Credit: Sigma Sports)

Swiss clothing company Assos has been making its Chamois Creme for what seems like forever, and it still stands out in today’s crowded cycling skincare market.

The 200ml tub has a wide opening, making it easy to scoop out a generous amount, and you can either apply it directly to your skin or spread it onto your chamois. Right now, you can get 32% off, bringing the price down to £15 – a great chance to stock up.

Save 32% on Assos Chamois Cream 200ml

Save 32% on the OnGuard Pitbull D-Lock Sold Secure Diamond and Cable 140mm

OnGuard Pitbull D-Lock Sold Secure Diamond and Cable
OnGuard Pitbull D-Lock Sold Secure Diamond and Cable (Image Credit: Sigma Sports)

The Onguard Pitbull D-Lock 140 mm with Cable is now 32% off, offering top-tier security with a Sold Secure Diamond rating – the highest available for bike locks. 

Designed for medium to high-risk areas, it features a quattro bolt locking mechanism that secures the shackle on four sides and a 14mm hardened steel shackle.

For around thirty quid, it’s a small price to pay to keep your bike safe when you’re out and about.

Buy now for £34, down from £50 

Pick up this Limited Edition Argon 18 Krypton Force AXS Road Bike for £2,799, down from £5,000

Argon 18 Krypton Force AXS Limited Edition road bike
Argon 18 Krypton Force AXS Limited Edition road bike (Image Credit: Sigma Sports)

The Argon 18 Krypton Force AXS looks like a road bike, rides like a road bike, but is very capable on the rougher stuff too. 

This £2,799 build comes equipped with a SRAM Force AXS groupset, Hunt 4 Season All-Road wheels and Vittoria Rubino Pro 30mm tyres. It can handle most poor road surfaces straight out of the box, and if needed, there’s plenty of room to fit wider tyres

Check out the Argon 18 Krypton Force AXS Limited Edition Road Bike here 

Clif Bar Bloks are now just £2.40, a 35% saving

Clif Bar Bloks
Clif Bar Bloks (Image Credit: Sigma Sports)

Clif Bloks Energy Chews sit somewhere in between bars and gels – small, chewy cubes of jelly that are easy to eat on the go.

Each pack contains six Bloks, providing a mix of carbohydrates for energy and electrolytes to replace what you lose during exercise. A full pack delivers 46g of carbs (including 24g of sugars) and an energy value of 782 kJ (184 kcal). Some flavours also include caffeine for an extra boost on longer rides.

35% off Clif Bar Bloks, now £2.40 

Check out Castelli’s Estremo Shoe Covers, now 26% off

Castelli Estremo shoes covers
Castelli Estremo shoes covers (Image Credit: Sigma Sports)

If you’re planning to keep riding through the winter, there’s nothing worse than wet, frozen feet. The Castelli Estremo Shoe Covers are built for sub-zero conditions, using Gore-Tex Infinium fabric to protect against wind and rain.

They’re a premium piece of kit, but right now you can save 26% in Sigma Sports’ flash sale, bringing the price down to £119.

Buy Castelli’s Estremo Shoe Covers for £119 

Now priced under £100, Trek’s CarBack Radar Rear Light is 42% off

Trek Carback radar rear light
Trek Carback radar rear light (Image Credit: Sigma Sports)

Radar rear lights are becoming an increasingly popular safety upgrade, helping you stay visible to vehicles approaching from behind while also alerting you to their presence. The idea is to increase your awareness and reduce surprises from behind.

The Trek CarBack Radar Rear Light detects approaching traffic from up to 240 metres away, sending real-time alerts to your bike computer. It also functions as a 90-lumen rear light with four modes.

Buy the Trek CarBack Radar Rear Light now for just £99 

Save nearly 50% on Shimano M520 SPD MTB Pedals, now only £24

Shimano M520 SPD MTB pedals
Shimano M520 SPD MTB pedals (Image Credit: Sigma Sports)

Shimano’s PD-M520 SPD pedals are some of the most affordable dual-sided pedal options you can get for your gravel or mountain bike, and they are now even better value with 47% off at Sigma Sports.

Receiving 5/5 in their off.road.cc review these pedals deliver reliable performance in a durable, easily serviceable design. The spindle on these pedals is made of steel (Chromoly) and inside the pedal body, the pedal is turning on a low-maintenance sealed bearing cartridge axle.

Save 47% on Shimano’s M520 SPD MTB Pedals 

For more great deals, head over to sigmasports.com