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Kinetic-One “K1-33SL ULTIMATE” Alloy Wheelset
Kinetic-One “K1-33SL ULTIMATE” Alloy Wheelset
Kinetic-One “K1-33SL ULTIMATE” Alloy Wheelset
Kinetic-One “K1-33SL ULTIMATE” Alloy Wheelset
Kinetic-One “K1-33SL ULTIMATE” Alloy Wheelset
13 reviews

Kinetic-One “K1-33SL ULTIMATE” Alloy Wheelset

610.00 USD


INTENDED USE: The latest super-fast version of our best selling, seriously light, hand built, sportive/road/climber wheelset.  Offered with a choice of spokes and hubs with a specific focus on combining high strength/durability with low weight and excellent aerodynamics.


Tough enough for the hilliest and roughest of Sportives, Fast-accelerating enough for the busiest of bunch races and aero enough to ensure that you gain every possible watt of drag reduction.

Beautifully finished, very light, superbly strong. Our 33SL ultimate rims are made from the latest generation of Nickel strengthened Niobium aerospace grade superalloys and are packed full of the latest rim tech.

Niobium superalloys require extremely sophisticated manufacturing processes and highly skilled workmanship. The result is a metal rim with strength similar to Titanium, weight similar to carbon, and responsiveness akin to Steel. You won't find Niobium alloys on standard factory wheels!

Featuring Superb Ambrosio Italian sealed bearing hubs as standard and a choice of upgrade models to make your wheels even lighter, more aero and tougher. These wheels are superbly specified and we feel have a unique look that is fast becoming our trademark.

AEROLIGHT MODEL: PSR Aero aero spokes. Ambrosio Italian sealed hubs. Balances low weight and aero gains perfectly. 1520 grams.

AEROFLOW MODEL: Complete with PSR Aero spokes and ultra low drag MICHE HUBS. The lowest rolling resistance hubs. The Miche hubs are also very rugged, and hence are fantastic for all-season usage.Learn More>>>

SUPERAEROLIGHT MODEL: PSR Superlight Aero spokes and Bitex Superlight hubs. Our lightest and most aero build. ONLY 1450 GRAMS. 

PENULTIMATE (DTSwiss 350) & ULTIMATE (DTSwiss 240s) MODEL'S: Ultimate durability and engineering from those Swiss masters! The 240s also adds incredible weightsaving to accompany its 'live-forever' build quality!

Your wheels will be hand built to order here in the UK by Andy Morgan, owner and founder of k1 wheels. Current build times are shown above).

Features a superb new 24mm wider rim profile compatible with both tubeless and clincher tyres. Slightly wider rims are the future of road wheels. They enable seamless tyre interfaces for max aero gain, they allow for wider tyres for shorter 'contact patch' and less rolling resistance. And to top it all - they are tremendously comfortable - easing the lower back in the final miles of those long long rides. TUBELESS & CLINCHER compatible. They will take tyres from 25c up to 40c width!

Offered With Full Warranty and professional mechanic support in-house.

We recommend the new Hutchinson Fusion 5 Performance tubeless tyres or for pure speed the Continental GP5000 Tubeless or Clincher tyres.


Niobium superalloy . T10 process - Tubeless and Clincher compatible
33mm deep (circumferential)

HUB Ambrosio Italian hubs - Fully Sealed. Or upgrade to Miche, Bitex or DTswiss
BEARINGS Sealed Cartridge throughout 
SPOKES Psr aero, or Upgrade to PSR Superlight
NIPPLES Alpina Blu power Nyloc Self-locking (the best!)
RIM TAPES Included


20/24 spokes

Aerolight Model: 1520 grams

SuperAerolight Model: 1450 grams

Ultimate Model: 1465 grams

(weights for campag. +25 grams shim/sram)

 Shipping Weight (Box plus wheels)

Weight: 4kg

Customer Reviews

Based on 13 reviews
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Philip Aherne - Ireland

Got a pair of the alloys last year, which I put on TT bike initially, but only appreciated how good they when I swapped out my Shimano C50 from my road bike. Flying uphill by comparison with my Shimanos.

Steve - Hammatt

I’m still loving my wheels, and despite doing over 6,000 miles on them they still seem to be rolling very nicely indeed.

Gavin Finlayson - Hertfordshire

These are great wheels and phenomenal value for money.

Light enough for the Hertfordshire hills but also strong enough for the Hertfordshire roads with their umpteen potholes and broken surfaces.

Where these wheels really shine is how quickly they spin up and how smoothly they roll, look lovely too!

And finally but arguably most important of all, Andy is a fabulous guy who will advise you on the specific build to best suit your needs.

Needless to say the customer service from beginning to end has been faultless... Thank you Andy!

Tim R - Helsinki, Finland

I wanted a set of aero wheels to be shared between my road and cyclocross bikes. I did not want to pay as much as I previously paid for shimano c24s. These Kinetic wheels are versatile wheels. I can use them with conti 25mm gp4000s or wider gravel tires on the cross bike. Nice and wide and deep without needing deep pockets. I have not tried running them tubless yet but it can only make the ride faster on the road or lower pressure on the cross bike.

Not quite as light as shimano duraace c24s, but the aero benefit outweighs the weight penalty.

I've now been through enough potholes to feel confident that the wheels are trustworthy and will get me home.

I am a happy customer and happy with this product. Wheels arrived well packaged. Good communication throughout the purchase process. I would recommend this product.

Unless I convert to disc braked bikes, I hope this will be the last set of wheels I need.

Hussain - London

Great set of wheels, very light, sold and smooth on the road. I have done the etape du Toure with those wheels and the rolling was amazing, I could confidently say that I took over every bike on the down hill, on top of that Andy was extremely helpful throughout the transaction and after to make sure that every thing went as expected .. very much recommended and pleasure to do business with

Peter Austin - Surrey

They look fantastic, they are light and roll beautifully. Service couldn’t have been better. Really helpful with advice on how to get the tubeless tyres on properly.

Alistair Carr - Ireland

Decided to change out the stock wheels on my new trek domane , after a good browse on the internet I came across Kinetic _one and picked out a set of wheels , the prompt communication from Andy and service is to be quite honest second to none , the lead time from order to build and delivery was true to as advertised .The wheels themselves were a superb decision , very light with super rolling hubs , and aesthetically more than pleasing , they actually tie in better with the bike than the original and there was plenty of choice from wheel type to colours , trust me get on this site you will be pleased you did ,thanks Andy your advice was spot on .

Jon - Hooper

These wheels tick all the boxes,extremely light for climbing and respond so well with any exceleration.The 30mm depth really helps and adds to control for descents and on the flat. These wheels run like silk. Nice one Andy a great build!

David - Sunbury, Surrey

I can't fault a single thing about buying the wheels. I made my first call to Andy who's expert advice was immeasurable. He asked me everything he needed to know and matched me to the perfect set of wheels. The quality is outstanding and they do everything that was promised. Customer service before, during and after was just outstanding. If you're undecided all I can say is pick up the phone and make the call. You won't be dissapointed!

Alastair Calvert - .

Glad I bought the second set of K1s, which are brilliant.

Recommended the K1s to one of my Club mates and another overheard. Think both are ordering – and them posting in our group looks like another two have or will be ordering as well 😊. At last they’ve seen sense 😉

We may clear out your stock at this rate! Always happy to recommend… fantastic wheels and amazingly friendly contact. Plus, with my K1s, I catch up much heavier riders freewheeling downhill. That must be the wheels! Brilliant.

Just wanted to let you know… and more than happy to support what you’ve obviously worked hard to establish.

Stuart McKie - La Herradura Spain

After a couple of rides bedding in I took these wheels for their first major spin this June on the La Indomable sportive covering 200kms and 4000metres of climbing. All in all these wheels showed no flex when jumping on the pedals, spun up to speed smoothly and gave a reassuring braking responsiveness, particularly when your hitting 50+ kms an hour on hairpin descents. I would certainly recommend these if your looking for a bomb proof reasonably light wheel, particularly at this price.

Stephen McClemont - Cheltenham

Great wheels.....buy some! Why? I bought a pair of these as a spare wheelset so I don't have to run my expensive carbon hoops (Sagan's wheels of choice apparently!) all summer. Andy's wheels are as good in virtually all aspects.....smooth, solid, great in cross winds, lovely handling. Where they differ is they are faster! All things being as equal as I can make them these wheels are consistently 1-2 kmh faster, if only Sagan had know he might have had that rainbow jersey sooner😀. The other difference is they are about a third of the price. Free speed....it doesn't get any better!

Steve Smith - Tanderdy Garage, South Wales

Devil Ride Review: Wheels are taut and stable at all times – I was very confident in cornering and descending at speed. Braking – it was dry – is effective and simple to moderate. The Schwalbe tubeless tyres gripped so well – much better than the previous conti 4000 with inner tubes – and the comfort of the ride was markedly better. I have genuinely been surprised at the difference the new wheels and tyres have made to the confidence I have in the bike – and straight from the off – and the improvement in the ride in terms of rolling over the rough parts of the road rather than crashing through the bumps. I was on the point of leaving the mavic wheels on my bike as the great number of informed views on alternatives I was receiving served really only to confuse. Your straight forward approach appealed and your advice has provided me with a much improved riding experience. The service provided has been as it should – excellent! Thank you. Top Banana! Went a little off piste today due to missing signs - not the fault of the organisers – so after 112 miles and 3000 meters of ascent in 23+ C temperatures I am going to collapse into bed!! Cheers for the wheels and the fun emails/texts