2026 Atom Sub-7 Tester X-Firm 110mm Indoor Wheel - $22.00
Size: 110mm.
The Atom Sub-7 Tester X-Firm is a 110mm wheel for indoor inline speed skating, black with a green hub. It is sold one wheel at a time, so you order as many as your frames take.
Atom Sub-7 Tester X-Firm features
110mm: For frames that take 110mm wheels, such as a 4x110 or a 3x110.
Sold by the wheel: Order one for each wheel spot on your frames.
Color: Black urethane with a green hub.
Made for: Indoor inline speed skating and racing.
Sizing
The Tester comes in 110mm. Each wheel is $22.00. A pair of 4 wheel frames takes 8 wheels and a pair of 3 wheel frames takes 6.
Questions
How many wheels do I need?
Order one wheel for each wheel spot on your frames. A pair of 4 wheel frames takes 8 wheels and a pair of 3 wheel frames takes 6. Set the number in the Quantity box.
What is the difference between the X-Firm and XX-FirmTester wheels?
They are 2 hardnesses of the same 110mm Tester wheel. Atom marks this one X-Firm and the other XX-Firm. The X-Firm is black with a green hub and the XX-Firm is green. See the Sub-7 Tester XX-Firm.
Is this the regular Sub-7 wheel?
No. Atom lists the Tester apart from it, in 110mm only. The regular Sub-7 comes in Firm and X-Firm, in 100mm and 110mm. See the Sub-7 Firm and the Sub-7X-Firm.
Is it made for outdoor skating?
No. The Sub-7 is Atom's indoor racing wheel. For outdoor skating see the Atom Matrix wheels.
What comes with it?
One 110mm wheel. The price shown is for a single wheel, not a set.
