Bikes / Ridley / Helium SLX

Ridley Helium SLX 2025 Geometry, Reviews, and Specs

Fit and steering

Aggressive fitSlow steeringFast steeringRelaxed fit

Weight—

Climbing7.5

Aero8.3

Comfort2.5

Ridley Helium SLX 2025 Sizing Guide

What it's like to ride

Ridley's lightweight race bike. Belgian race fit, the climbing Ridley versus Noah aero. A long-running nameplate — compare years.

Who it's for

Racers who want Ridley without Noah's aero. Fenix if you need endurance stack.

Ridley Helium SLX 2025 Geometry Chart

Size	Stack	Reach	Stack/reach	Stem	Bar	Crank	Head tube angle	Seat tube angle	Chainstay	Wheelbase	BB drop	Wheel size
XXS	500 mm	372 mm	1.34:1	70 mm	360 mm	165 mm	71.0°	74.5°	405 mm	968 mm	72 mm	700c
XS	515 mm	378 mm	1.36:1	80 mm	380 mm	165 mm	72.0°	74.0°	405 mm	974 mm	72 mm	700c
S	532 mm	384 mm	1.39:1	90 mm	400 mm	170 mm	73.0°	73.5°	405 mm	982 mm	70 mm	700c
M	550 mm	390 mm	1.41:1	100 mm	420 mm	172.5 mm	73.0°	73.0°	405 mm	992 mm	70 mm	700c
L	568 mm	396 mm

What's new for the 2025 year

2024 chart

2025 colorways

No colorway catalog for 2025 yet.

What changed in the bike frame

Same published geometry as 2024.

Published geometry matches the 2024 Ridley Helium SLX. Same sizes, same stack and reach.

What changed in equipment

No verified spec sheet for 2025 or 2024.

What changed in price

No launch MSRP in the catalog yet.

Compare 2025 and 2024 Ridley Helium SLX side by side

2025 Reviews

The comeback dream bike build: Jack's Ridley Helium SLX ...road.cc · 2023

Ridley Helium SLX 2025 Geometry, Reviews, and Specs

Fit and steering

Aggressive fitSlow steeringFast steeringRelaxed fit

Weight—

Climbing7.5

Aero8.3

Comfort2.5

Ridley Helium SLX 2025 Sizing Guide

What it's like to ride

Ridley's lightweight race bike. Belgian race fit, the climbing Ridley versus Noah aero. A long-running nameplate — compare years.

Who it's for

Racers who want Ridley without Noah's aero. Fenix if you need endurance stack.

Ridley Helium SLX 2025 Geometry Chart

Size	Stack	Reach	Stack/reach	Stem	Bar	Crank	Head tube angle	Seat tube angle	Chainstay	Wheelbase	BB drop	Wheel size
XXS	500 mm	372 mm	1.34:1	70 mm	360 mm	165 mm	71.0°	74.5°	405 mm	968 mm	72 mm	700c
XS	515 mm	378 mm	1.36:1	80 mm	380 mm	165 mm	72.0°	74.0°	405 mm	974 mm	72 mm	700c
S	532 mm	384 mm	1.39:1	90 mm	400 mm	170 mm	73.0°	73.5°	405 mm	982 mm	70 mm	700c
M	550 mm	390 mm	1.41:1	100 mm	420 mm	172.5 mm	73.0°	73.0°	405 mm	992 mm	70 mm	700c
L	568 mm	396 mm

What's new for the 2025 year

2024 chart

2025 colorways

No colorway catalog for 2025 yet.

What changed in the bike frame

Same published geometry as 2024.

Published geometry matches the 2024 Ridley Helium SLX. Same sizes, same stack and reach.

What changed in equipment

No verified spec sheet for 2025 or 2024.

What changed in price

No launch MSRP in the catalog yet.

Compare 2025 and 2024 Ridley Helium SLX side by side

Ridley Helium SLX 2025 Geometry, Reviews, and Specs

Similar bikes

Fit and steering

Ridley Helium SLX 2025 Sizing Guide

What it's like to ride

Who it's for

Ridley Helium SLX 2025 Geometry Chart

What's new for the 2025 year

2025 colorways

What changed in the bike frame

What changed in equipment

What changed in price

2025 Reviews

Ridley Helium SLX 2025 Geometry, Reviews, and Specs

Similar bikes

Fit and steering

Ridley Helium SLX 2025 Sizing Guide

What it's like to ride

Who it's for

Ridley Helium SLX 2025 Geometry Chart

What's new for the 2025 year

2025 colorways

What changed in the bike frame

What changed in equipment

What changed in price

2025 Reviews