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2017 Ridley Helium SL Red eTap/Zipp 302 Complete Road Bike


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2017 Ridley Helium SL Red eTap/Zipp 302 Complete Road Bike

Zipp’s new 302 carbon hoops. Though the pros at Lotto Soudal ride Campy, this build is every bit equal to the needs of all-rounders like Gallopin and climbers like De Gendt—in fact, we’d be hardpressed to assemble a more race-worthy bike. Which was exactly the criteria behind why we built it the way we did. This is no manufacturers’ slop with garbage wheels and an off-brand crankset. It’s the product of us choosing what we want to ride and building a bike accordingly. Given the “what we want” clause, it’s only fitting we started with a frame that we want to ride. Hence the Helium.

The name Helium calls to mind light, floaty things, which is no doubt what Ridley had in mind when selecting the naming convention. The Helium SL frame and fork are an astonishing 1,050 grams—that’s around 170 grams lighter than most other big-name brands pro framesets and 200 grams lighter than the regular Helium. That low weight is the result of a strategic lay-up of unidirectional 60, 40, and 30-ton high-modulus carbon fiber, whereas the standard Helium only uses 30 ton. The SL also incorporates a nano resin to improve the compatibility of the resin and carbon, which decreases weight and increases durability.

The first time we built a Helium SL, we found ourselves questioning the strange seatstays and seatposts that have become all the rage in bicycle “innovation.” The Helium’s seatstays, which are simple, slightly flattened tubes, combine with the traditional 27.2 seatpost for a compliant ride by devouring road noise and bumps like Helium’s halogen cousins gobble up other molecules’ electrons. It’s far more comfortable a ride than its drive stiffness and low weight suggest, adding additional depth to the “floaty” descriptor we used above.

We’re also enamored with the Helium’s thoughtful blend of internal and external cable routing. The brake cables, which undergo some contortions without getting down near the grime-collecting drivetrain to get where they’re headed, are left out in the open for ease of installment and maintenance. The derailleur cables, which travel dangerously close to the drivetrain and are therefore more susceptible to collecting debris, are routed internally—but it’s a straight shot. No tricky bends or silly, internal tube shapes that you have to guess at in order to get the cables through.


  • A bike built for racing in the mountains and in the valleys
  • High-modulus carbon boosts stiffness and sheds grams
  • Geometry proven on the world stage by Lotto Soudal
  • Rear triangle maintains efficiency without harshness
  • Blend of internal and external routing for easy maintenance
  • SRAM’s wireless eTap is the cleanest drivetrain available
  • The 42mm Zipps are ideal for virtually any racing scenario



2017 Ridley Helium SL Red eTap/Zipp 302 Complete Road Bike

60, 40, and 30-ton carbon fiber

Fork Material:

carbon fiber




SRAM Red eTap

Front Derailleur:

SRAM Red eTap

Rear Derailleur:

SRAM Red eTap


50 / 34t SRAM Red

Bottom Bracket:


Crank Arm Length:

[XS – M] 172.5mm, [L – XL] 175mm


11 – 28t SRAM PG-1170




SRAM Force

Brake Type:



Zipp Service Course

Handlebar Width:

[XS] 40cm, [S – M] 42cm, [L – XL] 44cm

Bar Tape:

PRO Classic


Zipp Service Course

Stem Length:

[XS – M] 90mm, [L – XL] 100mm


Fizik Aliante R7


Zipp Service Course

Seat Collar:



Zipp 302 carbon

Front Axle:

9mm quick-release

Rear Axle:

130mm quick-release


Vredestein Comp Race

Tire Size:

700c x 25mm


not included

Recommended Use:




Helium SL
  Seat Tube
Effective Top Tube






Stand Over Head Tube Length


Head Tube Angle


Seat Tube Angle


Bottom Bracket Drop Chainstay Wheelbase
XS 48.0cm 52.5cm 53.0cm 37.5cm 74.0cm 13.0cm 72.0o 74.0o 6.8cm 40.5cm 97.4cm
S 51.0cm 54.5cm 54.5cm 38.5cm 75.0cm 14.5cm 73.0o 73.0o 6.6cm 40.5cm 97.7cm
M 54.0cm 56.5cm 57.5cm 39.0cm 78.0cm 17.5cm 73.0o 73.0o 6.6cm 40.5cm 99.0cm
L 57.0cm 58.5cm 60.2cm 40.0cm 81.0cm 20.5cm 73.0o 72.0o 6.3cm 40.8cm 100.3cm
XL 60.0cm 60.0cm 62.5cm 40.5cm 84.0cm 23.0cm 74.0o 72.0o 6.3cm 40.8cm 101.2cm


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