ULTRON discwheel
One disc. Every detail built around speed. AIRlense ULTRA aerodynamics. Ceramic precision. Made by RON, in Poland.
In stock
World wide shipping in 3-10 days
Speed is in the details.
Meet the technologies behind the fastes discwheel in IronMan history
AIR lense ultra
Turn crosswinds into your advantage.
The fourth-generation AIRlens features a lenticular profile on both sides of the disc. Its diffuser-like narrowing below the rim helps reduce turbulence and drag, while the refined shape increases the sailing effect by 11% compared with the previous generation, making more effective use of crosswinds.
ULTRON WIDEflow design
Wide tyres. Refined aerodynamics.
The ULTRON Disc’s specially designed rim—with a 31 mm external and 22 mm internal width—is optimised for 28–30 mm tyres. A smooth tyre-to-rim transition helps minimise airflow disruption, combining aerodynamic efficiency with the comfort and grip of wider tyres.
xas surface
Engineered turbulence. Reduced drag.
10 XAS panels feature a hexagonal dimple pattern designed to keep airflow attached to the wheel’s surface for longer. By creating a controlled turbulent boundary layer, XaeroSkin reduces aerodynamic drag
11%
stronger sailing effect
31mm
external profile
10
Xas panels
Product specification
1080g
31 mm / 22 mm
28–30 mm
Hooked tubeless/ clincher
Disc brakes- centerlock mount
12x142 mm thru axle
4 × Enduro Ceramic
36T ratchet
What’s Included
30
DAYS FREE RETURN
2
YEARS INTERNATIONAL WARRANTY
Testimonials
Bigjuergo
RON rearwheel solid and fast
I am absolutely happy with the wheel so far.
fits prefect to my Canyon Speedmax SLX 8.0 (disc breaks)
the price for value is good. i can recommend this wheel.
wheel is solid and has nice sound when accelerating.
i ride it with 28-10 SRAM casset
Kimpale
ULTRON Disc
Super happy with the disc. Light and extremely fast! Beteer than the other expensive brands. You should be proud what you have done with this one!
I`m thinkin of getting the 85 front wheel to complete my race wheel set.
ArtemSekachev
Good wheel!
Smooooth and fast, highly recommended!
Antonio
great product and timing on delivery
Product precisely as described and super timing for delivery
FAQ
Find answers to common questions about our products, orders, shipping, and support.
Can i return my order?
Yes, we offer 30-DAY SATISFACTION GUARANTEE – you can return your order for free.
Do RON ship international?
Yes, we ship all over the world with DHL Express.
Shipping costs will apply, and will be added at checkout.
How long will it take to get my orders?
If your wheels are in stock we aim to have them shipped within 1-3 days. Shipping takes 3-10 days.
Taxes and import duties
All shipments out of EU will incur duties and taxes charged to the end customer via DHL.
BUILD YOUR RACE SETUP
