The King is dead, long live the King – the Kinesis Aithein is back to reclaim its place as the fastest bike in the Kinesis line-up. For 2023, our premium aluminium race frame is faster, more comfortable and more fun than ever before. Whether it’s racing the local crit or winning the sprint for the sign, the new Aithein is the bike to get you there quicker.
Using advanced aluminium construction techniques, we’ve created a lightweight frame that truly questions the need for a carbon bike. Thanks to the advanced manufacturing technique called Superplastic Forming (SPF), we’ve minimised weight whilst maximising stiffness and strength where you need it. The result is a high-performance frame that excels in transferring rider energy into forward momentum.
Now with more tyre clearance – the new Aithein now features 30mm tyre clearance for speed and grip, allowing you to ride at full speed on every road surface on modern larger-volume tyres. To complement the frame we chose the excellent Futura Road fork from Columbus, known for its impeccable ride quality and unmatched vibration damping.
Flat mount brake attachment and industry standard 12mm thru-axles are used on the disc brake model with GW’s excellent switch lever for a clean looking and dependable set up. No matter how you choose to ride, if you choose to ride fast, choose to ride Aithein!
ROAD.CC / Kinesis Aithein Disc Frameset
Conclusion
"The Aithein Disc isn't just an excellent aluminium frameset, it's an excellent frameset full stop. If you want the stiffness and performance of a race bike without the associated twitchy handling, then the Kinesis is definitely one to consider." - road.cc Aithein bike test
Verdict
"Impressively stiff and efficient frameset, which showcases just how good aluminium can be." - road.cc Aithein bike test
Super Plastic Formed Alloy Frame
Constructed from tubes that are created with an advanced manufacturing technique named Superplastic Forming (SPF), which involves heating the alloy until it exhibits superplasticity, and then creating complex tube shapes using gas pressure.
Columbus Futura Road Disc Fork
T700S and HFM Carbon Fibre Monocoque construction, 45mm rake, 440g fork. Stiff with high vibration damping for a smooth ride.
30mm Tyre Clearance
It is becoming widely accepted that wider tyres offer more speed, more grip and more comfort on real world surfaces. The new Aithein Disc will take up to 30mm tyres so you can choose the right tyre for you and your riding conditions.
Kinesis Rider Fit Geometry
Geometry adjustments have been made to ensure a better fit across a greater range of rider dimensions. As a result there is more consistent handling across sizes, less toe overlap, and more intuitive sizing.
68mm Threaded BB
Threaded BBs allow you to use reliable, creak free bottom brackets that withstand year round British conditions.
Adaptable Cable Ports
Thanks to interchangeable cable entry points you can run exactly the routing you need, ensuring there are no excess holes into the frame.
Wireless Electronic / Mechanical / 2x / 1x Compatible
The Aithein frame is designed to work with mechanical and all wireless electronic groupsets.
• Super Plastic Formed lightweight aluminium frame.
• Columbus Futura Road Disc carbon fork.
• GW Tapered headset with ACB Bearings.
• 142x12mm Thru Axle rear spacing.
• 100x12mm Thru Axle front fork.
• GW ‘Switch Lever’ axles front and rear.
• Clearance for up to 30c tyres (tyre and rim dependent).
• Wireless Electronic / Mechanical / 2x / 1x Compatible.
• Two bottle cage mounts.
• Front Mech clamp size needed: Braze-On.
• 68mm threaded BB.
• 31.6mm seat post required.
• 22mm long flat mount disc brake bolts required for the frame.
Colour: Deep Purple
Sizes: 47 / 50 / 53 / 56 / 59cm.
Warranty: 5 years.
• Frame supplied with fork, headset, seat clamp, front & rear through axle, frame ports and cable guides.
• Frame Weight (with Seat Clamp, Mech Hanger and all cable guides: 1.60kg (53cm).
Due to the frame design and positioning of the front mech mount this model Aithein Disc is not compatible the following Shimano front mechs FD-5800, FD-6800 and FD-9000
AITHIEN DISC |
| | Frame Size Seat Tube | XS (47*) | S (50*) | M (53) | L (56) | XL (59) |
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| *Semi-Sloping |
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| Hover Over Chart for Geometry Illustrations |
AITHIEN DISC |
| | Frame Size Seat Tube | XS (47*) | S (50*) | M (53) | L (56) | XL (59) |
| A | Set Tube Length C-T | 440 | 470 | 530 | 560 | 590 |
| B | Top Tube Length Effective | 511 | 535 | 550 | 569 | 588 |
| C | Head Tube Length | 128 | 143 | 150 | 175 | 208 |
| D | Head Tube Angle | 71.75 | 72.5 | 73 | 73.5 | 73.5 |
| E | Seat Tube Angle | 75 | 74 | 73.75 | 73.5 | 73.5 |
| F | Bottom Bracket Drop | 72 | 72 | 70 | 70 | 69 |
| G | Chain Stay Length | 410 | 410 | 410 | 410 | 410 |
| H | Front Centre | 573.7 | 579.3 | 587.8 | 599.7 | 617.8 |
| I | Wheelbase | 972.8 | 978.5 | 987.6 | 999.6 | 1018.1 |
| J | Stack | 525 | 540 | 550 | 575 | 605 |
| K | Reach | 370 | 380 | 390 | 399 | 408 |
| L | Fork Length | 368 | 368 | 368 | 368 | 368 |
| M | Fork Rake | 45 | 45 | 45 | 45 | 45 |
Choosing the correct bike size for you depends on the type of bike your after, your height, your riding style, and your preference of fit.
A correct fitting bike will provide a more comfortable, more efficient and more fun ride.
Kinesis’s bike size guide gives you some general advice on choosing the right size. It is a guide only and we always recommend visiting one of our stores or contacting one of our experts from our contact us page.
To get started, think about your style of riding, measure your height and see the sizing guide below.
However there is no substitute for good old fashioned advice from your local bike shop, we have a list of dealers here and they will be able to help you with your sizing and bike setup prior to building it.
Cycling Plus #385
"the Aithein is a refreshingly uncomplicated bike…a bike with racy intentions and few concessions,
Kinesis makes no bones about the Aithein Disc’s racy demeanour.
Put simply, it’s fun….. an engaging ride on days when you’re on the rivet and feeling strong.
The Aithein Disc is a single-minded bike but it looks great and is hugely enjoyable for the right kind of riding.
It’s designed for fast, aggressive riding and will appeal to road and criterium racers. Its stiff frame makes it an excellent climber and a precise high-speed descender too.
The overall ride quality is reasonably smooth, made more so by the posh handmade Challenge tyres…
…it shines most on good tarmac where you can exploit its supremely stiff back end and really put some power down without sub-par road surfaces ruining your fun.
…it’s an appealing option that you can build to your precise specifications."
Reiner Vijay Singh
Rating: 5 | 5
Message: Been riding it for 2 years. I have 2 Trek Madones, and I enjoy riding this bike as much as any other. Comfortable and controllable as any other bike I've had, and a fraction of the price.
ROAD.CC / Kinesis Aithein Disc Frameset
Conclusion
The Aithein Disc isn't just an excellent aluminium frameset, it's an excellent frameset full stop. If you want the stiffness and performance of a race bike without the associated twitchy handling, then the Kinesis is definitely one to consider. It's pretty good value too.
Verdict
Impressively stiff and efficient frameset, which showcases just how good aluminium can be.
Summary
How does the price compare to that of similar products in the market, including ones recently tested on road.cc?
The Aithein is priced well when compared to the Cannondale CAAD13, and it also comes in a bit cheaper than the new Bowman.
Did you enjoy riding the bike? Yes.
Would you consider buying the bike? Yes.
Would you recommend the bike to a friend? Yes.
Rate the bike overall for performance: 9/10.
Rate the bike overall for value: 7/10.
Explain your overall score
The Aithein Disc delivers a high quality ride in terms of both performance and comfort, and its geometry means it can be ridden hard by anyone, regardless of your skill level.
Overall rating: 8/10
Full Review Here