£150 OFF:  2019 Kinetic-One “K1-33SL ULTIMATE” Alloy Wheelset
14 reviews

£150 OFF: 2019 Kinetic-One “K1-33SL ULTIMATE” Alloy Wheelset


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INTENDED USE: The latest super-fast version of our best selling, seriously light: "all purpose/all season” hand built sportive/road 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. 

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. 1497 grams. For riders up to 110 kg.

SUPERAEROLIGHT MODEL: PSR Superlight Aero spokes and Bitex Superlight hubs. Our lightest and most aero build. ONLY 1450 GRAMS. For riders up to 110 KG

ULTIMATE (DTSwiss 350) MODEL: Ultimate durability and engineering from those Swiss masters! For Riders up to 125KG.

Your wheels will be hand built to order here in the UK by Andy Morgan, owner and founder of k1 wheels. Turnaround time is most often 7-11 days. (current build times are shown at checkout).

Features a superb new 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.

Featuring our superlative 24mm wide TUBELESS & CLINCHER rim, light and strong with an asymmetric offset drilled rear rim profile to enable perfectly balanced spoke tensions for a much more responsive ride.They will take a tyre from 25c up to 40c width!

Offered With Full Warranty Plus A 14 Day "No Quibble Returns Policy" - If You're Not In Love With These Wheels The Moment You Get Them Just Send Them Back For A Refund Any Time Within 14 Days Of Receipt.

Tubeless can be run at lower pressure than clinchers and this helps provide a more comfortable ride and it also eliminates the possibility of pinch flat punctures (caused from hitting potholes etc.) It's also the case that by filling the tubeless tyre with a sealant such as STANS you can pretty much avoid all punctures forever more - even if you ride over glass or a nail sticks right through your tyre. Just remove it and the tyre will reseal around it!

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


RIM 6066 T6 alloy - Tubeless and Clincher compatible
33mm deep (circumferential)
Asymmetric/Offset rear rim profile for perfectly balanced tensions.​​​​​
HUB Ambrosio Italian hubs - Fully Sealed. Or upgrade to Miche, Bitex or DTswiss
BEARINGS Sealed Cartridge throughout 
SPOKES Psr aero or K1 3mm bladed spokes, or Upgrade to PSR Superlight
NIPPLES Alpina Blu power Nyloc Self-locking (the best!)
RIM TAPES Included
WEIGHT Aerolight Model: 1497 grams
SuperAerolight Model: 1447 grams

(weights campag: +25 grams shim/sram)
Advised Rider weights 110kg Aerolight/SuperAeroLight models
125kg AeroFlow/Ultimate models

 Shipping Weight (Box plus wheels)

Weight: 4kg


Based on 14 reviews
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Sara Dias-Ayton - Hampshire

Lovely light pair of wheels. Good enough to race on yet the price of a training wheel. Very pleased with these.

Terry Shepherd - Epsom

I was keen to bling up my bike and was very, very happy with my Campagnolo Zondas and had no issues with them. All my mates have big brand carbon wheels and they all look amazing.

I search high and low for the combo of lightweight, strong and a little deeper rim. I decided to go for these babies and man was I right!

I had a brief chat with Andy who was very helpful and then pressed the "buy" button. They were expertly packaged and they look the mutts nuts!

On my first ride I decided to take it easy in order to avoid the placebo effect. It was one of my regular short, hilly routes (27 miles, 2100 ft climbing). I immediately noticed how well they roll, both on the flat but especially down hill, I was doing double takes at my speed!

I finished the route in a time and speed I have only ever done around 4 times and that's when I'm ultra fit.

I did a 45 mile ride yesterday and averaged just under 21 mph, they make a massive difference.

If Red Bull gives you wings then these wheels give you turbo rocket jets!!

Buy with confidence!! :-)

Ian - Cambridgeshire

Excellent wheels and the decals really set them off well on my other half's Giant TCR.

They give the bike that rather nice hmm as they pass

Mairi Anne Macdonald - Edinburgh

Out on my new wheels at the weekend, and they were everything I expected them to be! Fantastic price, the best customer service I’ve experienced in a long time, and a really high quality product, delivered in record time. What more can I say, except a great big thank you!

cheers mairi anne.

Lisa Chichester - Uk

I just wanted to say thank you for all your help and advice, and for building me such a great set of wheels. They are so smooth to ride and roll up to speed really quickly.

I swapped out the summer lightweight tyres for some more robust 25’s for our recent JOGLE trip and even on the rough Scottish roads the wheels behaved impeccably.

Merv Clark - Brum

Spot on set of wheels. I use them in sprint tri''s right through to century sportives and they really feel like the right wheels for every job. you never feel you''re losing out. Again i guess that''s the aero and lightweight thing! Tough as old boots. i''ve given them a right lamping on our very knackered roads.

Andy Muncie - Watford

Brought these last year but not had them on the bike over winter. Have now done around 300 miles and have to say they are fantastic(which is why they are now on my new bike)for the price and customer service you can't go wrong. 100% reccomend these wheels to anyone.

Bryan - Singapore

I ordered my wheels over the web, after considerable helpful advice from the folks at K1. I was NOT disappointed. They arrived beautifully packed, and ready to go. I was taking my first ride within minutes and MAN what an upgrade from the stock Fulcrum 5's that came with my bike. They ride much smoother, but tougher, and seem to hold momentum much more easily. I feel like I picked up 1k/hr from them, but more importantly, my daily ride is more engaging and fun. They are simply a pleasure. I also like the fact that they are "different" from the stock upgrades out there - and they look great. Highly recommended.

Adam Giles - .

Service = excellent Delivery = well packaged and when stated The product to look at = wheels look the business! To use = admittedly the previous wheels were bog standard but even still the difference was ammence! More speed everywhere, especially on climbs. Avg speed has increased by 3mph! Went from mid table in competitions on the bike leg to now getting into the top 10 percent. With the old wheels I struggled to roll past 60 mile rides and now I've done 100+ ones. With the exception of my bike (which I won't be sending a pic of as although I love it, looking at your gallery, I would feel bad if I saw a pic of mine!) the single best bit of kit I've brought to improve my tri performance and all round biking satisfaction!

Charles - Derby

Excellent excellent Product and excellent service - though the courier was a day later than I paid for! Though thats not your fault i know. Thanks.