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Ridley Helium SLX Road Bike Frameset - 2017

Ridley Helium SLX Road Bike Frameset - 2017
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Item # RID005J

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  • Black/Red/White, M ($2,380.00)
  • Black/Red/White, L ($2,380.00)
  • Black/Red/White, XL ($2,380.00)
  • Grey Retro, M ($2,380.00)
  • Grey Retro, L ($2,380.00)
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Item # RID005J

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For 2017, the Belgian cobble tested and gram-counter approved Helium SL gets some slight tweaks and a new name to usher in the year. The new Helium SLX Road Bike Frameset takes its predecessor's nearly unicorn-like mix of minimal weight, stiff power transfer, and knife-like handling to the proverbial extreme with a few grams of weight savings and claims of even stiffer, snappier control.

The SLX brings back the super light blend of 60, 40, and 30-ton high modulus carbon fiber to create a World Tour worthy frame that efficiently transfers power and a 30 gram weight savings over the SL (for a size medium frame). The front end sees a slightly different curvature at the tube junctions, a small change that Ridley claims boost stiffness by 15% and translates into even snappier, more responsive handling when diving into switchbacks and sprinting towards the finish line.

As with the SL, the SLX features rounded tubing emanating from the seat tube juncture, which slowly becomes box-shaped as it approaches the head tube and bottom bracket junctures. As Ridley puts it, this system creates a clean transition from stiffness to comfort. Supporting this ideology, the rear triangle has been designed with a blend of the two shapes. The asymmetric, flat chainstays provide a stiff platform for power transfer to the rear wheel, while the ultra-thin seatstays create a vertically compliant ride quality without sacrificing rigidity.

  • A featherweight road frameset
  • Race-ready geometry handles technical roads with ease
  • High modulus carbon layup drops grams from the SL
  • Updated headtube junction shape increases stiffness
  • Internal cable routing with molded internal channels for clean install
  • Beefy bottom bracket shell efficiently transfers power
  • Clearance for tires up to 25mm and external rim widths up to 28mm

Tech Specs

Frame Material:
60t-40t-30t high modulus carbon fiber, [dropout protection plates] stainless steel
Wheel Size:
4ZA Helium SLX
Fork Material:
60t-40t-30t high modulus carbon fiber
Head Tube Diameter:
1-1/4 - 1/1/8in tapered
Headset Included:
Bottom Bracket Type:
Cable Routing:
Front Derailleur Mount:
Brake Type:
standard rim
Compatible Components:
electronic and mechanical drivetrains
Seatpost Diameter:
Front Axle:
Rear Axle:
Claimed Weight:
[frame, medium] 750g, [fork] 300g
Recommended Use:
Manufacturer Warranty:
5 years

Geometry Chart


Geometry Chart


Helium SLX

Seat Tube


Effective Top Tube






Stand Over

Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Drop




XS 48cm 52.5cm 52.7cm 37.4cm 75.5cm 13cm 72o 74o 6.8cm 40.5cm 97cm
S 51cm 54.5cm 54.2cm 38.4cm 77.5cm 14.5cm 73o 73.5o 6.6cm 40.5cm 97.7cm
M 54cm 56.5cm 57.3cm 39cm 80.4cm 17.5cm 73.5o 73o 6.6cm 40.5cm 98.7cm
L 57cm 58.5cm 59.9cm 39.6cm 83.4cm 20.5cm 73.5o 72.5o 6.3cm 40.8cm 100.5cm
XL 60cm 60cm 62.4cm 40.3cm 96.1cm 23cm 74o 72.5o 6.3cm 40.8cm 101.4cm

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Avg. ride time: 5h 3m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Light, Stiff.....FAST

  • Familiarity: I've put it through the wringer

What an awesome frameset Ridley has produced. Finish on the Gray frameset looks stunning in person and gets lots of compliments. I have ridden, and owned just about every super bike you can imagine, and the only thing missing here is the hype. The Ridley will climb, descend, and sprint as well as all the other big name brands out there, and look better doing it. Super straight forward to build without any weird proprietary issues like headset, seat post, bottom bracket, etc. I now have the Helium SLX, and the Noah in the stable from Ridley, and will definitely buy Ridley again.