The Atom Sub-7 X-Firm is Atom's indoor racing wheel for inline speed skating, in the X-Firm hardness. It comes in 100mm and 110mm and is sold one wheel at a time.
Atom Sub-7 X-Firm features
Improved Q ring: Atom's update to the Sub-7 for more speed, grip and rebound.
X-Firm hardness: The harder of the two Sub-7 hardnesses. The Atom Sub-7 Firm is the softer one.
100mm and 110mm: For frames that take 100mm or 110mm wheels.
Color: Green urethane with a green hub.
Made for: Indoor inline speed skating and racing.
Sizing
Choose the wheel size your frames take. Each choice in the drop down box is one wheel, $27.00 in either size. 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 Firm and X-Firm?
Both are the same Sub-7 wheel in 2 hardnesses. The Firm is the softer one and the X-Firm is the harder one. The Firm is black with a green hub and the X-Firm is green. See the Sub-7 Firm.
Are they made for outdoor skating?
No. The Sub-7 is made for indoor racing. For outdoor skating see the Atom Matrix wheels.
What comes with it?
One wheel in the size you pick. The price shown is for a single wheel, not a set.