Kronostok FWS 5.5 Pro Disc


Our flagship range of wheelsets designed specifically for the new generation of Disc Brake road bikes. Available in five rim depths and manufactured using FWS technology which results in a lighter, stiffer wheel set. Our blunt edge, wide rim platform design is highly aero efficient, even taking into consideration a better tyre to rim interface optimising aerodynamic performance when using 23mm and 25mm tyres. Wider tyres can mean less rolling resistance, enhanced cornering control and overall rider comfort, resulting in faster speeds for the same given effort. The ultimate wheelset for all competition or fast training while delivering the exhilarating experience of superior braking with the added bonus of greatly extended rim life.

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Category: SKU: kronostok-fws-5-5-pro-disc Tags:



Disc Brake road bikes are set to become the norm within the next few years with many major bicycle manufacturers planning to further develop Disc Brake bikes only, some  having made this progressive step already. With benefits of going ‘Disc’ such as superior braking modulation in all weather conditions, greater unity between frameset and wheels which in turn delivering a more efficient overall package and even a greater life expectancy from your wheelset by eliminating rim degradation from pad ware and over heating, a common problem with carbon rims. There’s no down side to choosing Disc Brake!



Lighter in construction due to the use of the FWS manufacturing method. Filament Winding System (FWS) involves winding a band of carbon fibre filaments around a 3D mould while building up rim thickness gradually and evenly resulting in a more balanced strength within the entire rim. High glass transitional temperature (hiTg) epoxy resins  are used in place of regular epoxy resins and are cured at higher temperatures resulting in a greater elimination of minute air pockets within the rim structure, reducing weight, increasing stiffness and  impact strength.


Aerodynamically these rims are top performers featuring a wide 26mm outer track width flared at 3 degrees with an 18mm internal track.  This combined with a 23 to 25mm tyre creates an excellent aero interface needed to penetrate the air with the least amount of disturbance.  A shallow arc rim wall transitions into a blunt rounded inner edge profile to create a balanced overall shape that’s incredibly aerodynamic and remains efficient even at higher Yaw angles while maintaining superb handling characteristics and working to your advantage whatever the conditions.


When choosing a hubset we can’t look beyond the Swiss giant. The clue to the quality is right there in the name and with years of trouble free  experience building with them why change?  A choice of two models are available, the mid range 350 Straightpull and the Pro/Elite benchmark EXP Straightpull set.

*DT SWISS 350, one of the best mid range hubsets available sharing features with its big brother the 240 model. Excellent quality and renowned for its  durability as you’d expected from one of the worlds biggest brands, making it the most popular hub choice throughout our range of builds.

*DT SWISS 240, in our opinion one of the best hubsets money can buy. A benchmark within the industry due to its legendary durability and ease of servicing.  Widely used within the Pro/Elite ranks of Cycling and Triathlon as well as being the turn to hub for many of the biggest wheel brands around.

(See wheel set specification details for full description)


An area not to be overlooked when considering overall performance. All Kronostok FWS wheelsets are laced with Sapim CX Ray spokes and sils brass lock nipples seated on stainless steel washers. With a reputation as one of the strongest spokes available the CX Ray also boasts unrivalled aerodynamics and corrosion resistance. The number one choice for a fast durable wheelset. Simply the best spoke out there.


We’re committed to building reliable durable wheelsets, which is why all Kronostok FWS models have undergone and passed the rigorous testing procedures necessary to be awarded UCI approval.  This allows their use in all UCI (road), ITU & ETU (Triathlon/Duathlon) drafting events which has become increasingly important to many Age Group Triathletes as well as competitive road riders.

Warranty- 18 months

Contact for availability


Rim – 700c ETRTO 622 x 19mm – Clincher specific, Tubeless/Clincher or Tubular
FWS Technology Filament Winding System, T700 Uni-directional full carbon fibre, High glass transitional temperature (hiTg) epoxy.
3.5 – (35mm x 26mm, internal 19mm) ERD: 575mm
4.5 – (45mm x 26mm, internal 19mm) ERD: 554mm
5.5 – (55mm x 26mm, internal 19mm) ERD: 534mm
7 – (69mm x 26mm, internal 19mm) ERD: 502mm
8 – (79mm x 26mm, internal 19mm) ERD: 485mm
Max Outer Profile Width 27mm
Hub DT Swiss 350 straight pull- Aluminium 24h/24h, Center Lock / 6 Bolt / Quick Release

DT Swiss 240 straight pull- Aluminium 24h/24h, Centre Lock / 6 Bolt / Quick Release

Axel System Quick Release- 100mm front/135mm rear

Thru Axle- 100x12mm front / 142x12mm rear centre lock

Bearings Rear: 6802 x2 & 6902 x2 rear hub and cassette body | Front: 6802×2
Cassette Body Aluminium alloy
Cassette Compatibility Shimano/Sram 10,11 speed | Campagnolo 8,9,10 & 11 speed / Sram 12s XDR
Spokes Sapim CX Ray black. 24h or 28h front X2, 24h or 28h rear X2
Nipples Sapim sils black, lock brass
Brake Type Disc
Tyre Compatibility 23mm to 28mm recommended with Maximum Pressure Clincher:115psi – 7.9bar / Tubeless:100psi – 6.9bar / Tubular: 145psi – 10bar
Skewers Quick release only, Steel/Alloy, black
Spoke Tension Max 135kgf
Rim Tapes Supplied with Clinchers only


+/- 30g Note:


Kronostok FWS Pro Disc 3.5 Clincher/Tubeless – 350 hub 1540g / 240 hub 1495g
Kronostok FWS Pro Disc 4.5 Clincher/Tubeless – 350 hub 1615g / 240 hub 1570g
Kronostok FWS Pro Disc 5.5 Clincher/tubeless – 350 hub 1695g / 240 hub 1650g
Kronostok FWS Pro Disc 7 Clincher/Tubeless – 350 hub 1805g / 240 hub 1760g
Kronostok FWS Pro Disc 8 Clincher/Tubeless – 350 hub 1893g 240 hub 1821g

Maximum Recommended Rider Weights


Kronostok FWS Pro Disc 3.5 85kg
Kronostok FWS Pro Disc 4.5 95kg
Kronostok FWS Pro Disc 5.5 100kg
Kronostok FWS Pro Disc 7 110kg
Kronostok FWS Pro Disc 8 120kg

Additional information


Wheelset, Front Wheel, Rear Wheel

Tyre Format

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Cassette Compatibility

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Decal Colour


Delivery and Returns

Lead Time

There is a 1 to 3 weeks lead time for all Revolver Wheels. There is a 1 to 10 days lead time on all accessories.


We are happy to offer an exchange or refund. Perhaps the item is not what you want, it doesn’t fit, or maybe you’ve just changed your mind. As long as your items are unused, in their original packaging and returned within 28 days of receipt, just send it back.

Please note, unwanted items are returned at the buyers expense.

If you return an item because it is not as described or it’s damaged, we will replace the item or issue a full refund by the payment method that was received.


Extent of Limited Warranty warrants its products to be free from defects in materials or workmanship for a period of two years after original purchase. This warranty only applies to the original owner and is not transferable. Claims under this warranty must be made through the retailer where the wheel was purchased or direct to the Wave Lenticular Ltd via e-mail. Original proof of purchase is required.

Limitations of Liability

To the extent allowed by local law, except for the obligations specifically set forth in this warranty statement, in no event shall Wave Lenticular Ltd. or its third party supplies be liable for direct, indirect, special, incidental, or consequential damages.

Limitations of Warranty

  • This warranty does not apply to products that have been incorrectly installed and/or adjusted.
  • This warranty does not apply to damage to the product caused by a crash, impact damage, abuse of the product, non-compliance with manufacturers specifications of usage or any other circumstances in which the product has been subjected to forces or loads beyond its design.
  • This warranty does not apply when the product has been modified.
  • This warranty does not apply when the serial number or production code has been deliberately altered, defaced or removed.
  • This warranty does not apply to normal wear and tear. Wear and tear parts are subject to damage as a result of normal use.
  • This warranty shall not cover damages caused by the use of parts of different manufacturers. This warranty shall not cover damages caused by the use of parts that are not compatible, suitable and/ or authorized by Wave Lenticular Ltd.


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