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The Selle Italia SLR 3D Carbon is a landmark achievement in road cycling saddle design — the lightest 3D-printed saddle ever produced. Weighing just 137 grams in size S3, it pushes the boundaries of what's possible in high-performance saddle engineering, shaving an impressive 29 grams from its predecessor, the SLR Boost 3D Kit Carbonio.
Built around a full carbon frame and shaped to the legendary SLR profile — trusted by professional road cyclists for decades — the SLR 3D Carbon combines Selle Italia's heritage with cutting-edge manufacturing precision. The saddle is constructed using Carbon DLS (Direct Light Synthesis) technology, a 3D-printing process that creates a lattice-structure padding layer with differentiated cushioning zones. This means each area of the saddle delivers exactly the right level of support and flex exactly where your body needs it, without the bulk or weight of conventional foam or gel padding.
Whether you're racing, riding sportives, or logging serious training miles, the SLR 3D Carbon delivers a riding experience that is both ultralight and genuinely comfortable — no compromise required.
Key Features
Carbon Rails — Maximum strength-to-weight ratio for a responsive, stiff platform
3D-Printed Padding — Variable cushioning zones for targeted pressure relief and support
Classic SLR Shape — A proven, race-tested profile refined over generations of road cycling
29g Lighter Than Its Predecessor — Advances on the SLR Boost 3D Kit Carbonio for an all-new benchmark
The World's Lightest 3D-Printed Saddle — Just 137g in size S3
Specifications
Feature
Detail
Dimensions
S: 242 x 130 mm / L: 242 x 145 mm
Rails
Carbon
Padding
3D Printed (Carbon DLS)
Weight
S: 137g / L: 143g
Recommended Use
Road
Which Size Do I Need?
The SLR 3D Carbon is available in two widths to suit different riders:
Size S (130mm) — Suited to riders with a narrower sit bone width, typically more aggressive riding positions
Size L (145mm) — Suited to riders with a wider sit bone width or a more upright position
The Selle Italia SLR 3D Carbon is the ideal saddle for road cyclists who demand the absolute best in weight, technology, and performance.
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DELIVERY
Delivery to mainland UK addresses are free for orders over £40. Except when you choose delivery to a third party (Click and Collect) there is a charge of £5.95 to cover some of the additional cost the couriers charge for this service. If you choose to collect from Fawkes warehouse there is no shipping charge.
There will an additional charge for deliveries to Highlands and Islands.
RETURNS TO FAWKES
Whether it’s a jersey that doesn’t fit, or the colour is not quite right, sometimes you’ll need to return items to us.
If an item is 'as new' and has not been used or fitted in any way, you can return it to us by post within 90 days of delivery for a refund. Please ensure that the goods are returned in their original packaging and are in an unused condition.
Please click HEREto print and then complete the returns form and include it inside your parcel.
If you wish you can use our Royal Mail Returns service please follow the instructions on the link below to return your parcel to us.
Please pack the item carefully to avoid damaged during shipping.
Customers need to pay the cost of return delivery unless the item is faulty and this will be deducted from your refund, currently £3.95.
If your have a large item e.g. Child seat, Bike, trailer etc. please contact our customer service team at Guy@fawkes-cycles.co.uk to arrange the best way to return your item, the cost will be deducted from your refund.
You will not receive a refund for the retail value of any free or promotional items you are sent, and you will be charged if they are not returned.
UNWANTED ITEMS
If you change your mind on your purchase, you have a full 90 days to return it for a refund. All Goods must be unused, in a saleable condition and in their original packaging with all labels still attached.
Please pack the item carefully to avoid damaged during shipping.
There are some exclusions to our 90 day returns policy, which are detailed below:
Nutritional products or those with a best before date must be returned within 28 days*
Any customised items such as wheel builds cannot be returned*
GPS systems such as sports watches or cycle computers can only be returned if unregistered*
For hygiene reasons, any intimate garments such as facemasks, underwear and swimsuits can only be returned if the items are faulty.
*Unless faulty
If you wish to return your item for a refund, please follow the returns procedure above.
We try our best to process all refunds within 14 working days. We'll refund your item via your original payment method.
You will not receive a refund for the retail value of any free items you are sent, and Fawkes may charge you for this item if you fail to return it
FAULTY ITEMS
If you feel that your purchase has developed a fault, then please contact us with photographs of the issue before returning any goods - we may be able to solve your problem without you incurring any further inconvenience.
If you find a fault with your item, send it back to us and we'll take a look at it as soon as we can. Items sent back to us will undergo an inspection and it may be necessary to send the item away to the manufacturer to confirm the fault. If we confirm a manufacturing fault, we'll happily replace or refund it.
Please pack the item carefully to avoid damaged during shipping.
Faulty items should be returned within a reasonable time and in a clean and dry condition. PLEASE NOTE, WE WILL NOT PROCESS DIRTY ITEMS.
Please enclose all your details and a covering note explaining the fault and any other useful details.
We'll try to get back to you within 14 working days of receipt of your parcel, although during busy periods this may take slightly longer.
Your statutory rights are not affected.
We reserve the right to recharge return carriage on items where no fault is identified.
Customer Service Email: Guy@Fawkes-Cycles.co.uk
Please contact us for our Payment & Security policy.
Contact us with any questions you have about this product