Radius Ring

$84.99 CAD
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61 reviews
In stock

Tried-and-true, the original skate sharpening hollow profile still used today by the majority of professional and amateur hockey players around the world.

1/2 inch
5/8 inch
5/16 inch
3/8 inch
7/16 inch
9/16 inch
11/16 inch
3/4 inch
7/8 inch
1 inch
1-1/8 inch
1-1/4 inch

Product information

THE SPARX GRINDING RING

THE HEART OF THE SPARX SHARPENING ECOSYSTEM

16 different hollows for personalized feel and performance.

SPARX RADIUS VS FIRE RINGS

SPARX RADIUS RING

The Sparx Radius Rings produces the traditional hollows most commonly used in hockey, including the most popular 1/2” and 5/8” cuts. Choose from 12 different radius rings – from the deepest hollow for extreme grip (5/16”) to the flattest hollow for unmatched glide (1-¼”).

SPARX FIRE RINGS

Looking to get the grip you need with the benefit of extra glide? Our FIRE Ring hollows provide exactly what you are looking for – the best of both worlds. Available in four different cuts (3/8”, 1/2”, 5/8”, 3/4”) the FIRE ring is a re-imagined and optimized flat bottom hollow that provides improved glide while still maintain desired bite.

UNDERSTANDING RADIUS OF HOLLOW

Radius of Hollow is simply how deep the groove is that is cut into the skate blade from sharpening. The deeper the cut, the more grip the blade will have on the ice. The shallower the cut, the more glide the blade will have on the ice. A smaller Radius Ring (5/16”, 3/8”, 7/16”) will cut deeper into the blade creating more bite, while a larger Radius Ring (1-1/8”, 1”, 7/8”) will not cut as deep, creating more glide.

CHOOSING THE RIGHT RADIUS OF HOLLOW

Choosing the right hollow is a matter of personal preference, whether you want more bite or more glide. The most common Radius of Hollow is a 1/2”, which is what you will find in most retail settings. We recommend 1/2” for most youth players (less body weight) and then increasing the radius (9/16”, 5/8”) as the player gets larger.

CHOOSING YOUR GRINDING RING

FREQUENTLY ASKED QUESTIONS

How long does a Grinding Ring last?

If you’re freshening up your blades after every skate, you’ll get 50-60 sharpenings (or even more!) per ring (Radius Ring or FIRE Ring) and if you’re sharpening your skates after every 5-6 hours of ice time, you’ll get about 40 sharpenings. We like to say its about $1 per sharpening.

How does the Grinding Ring know when it's out of sharpenings?

This information is stored on a microchip inside the Grinding Ring and is relayed to the Ring Life Status Bar on the Menu Pad.

Do you offer a Flat Bottom sharpening?

Yes! Our patented FIRE (Flat Inside Radius Edges) Ring produces a flat bottom hollow.

How do I know which Grinding Ring to choose?

While there are many options available, the most common grinding rings are the 1/2" and the 5/8" Radius Ring™. Through our testing, we have determined that a 1/2" Radius Ring is a great starting point for smaller, younger players. Many adult players skate on a 1/2" radius as well. We have, however, found that larger, heavier players actually do quite well on the 5/8" radius. A flatter radius, the 5/8" allows heavier players to sufficiently grab an edge for turning and stopping but provides great glide as more of the blade remains above the ice surface.

What is the difference between a Radius Ring™ and a FIRE Ring™?

The easiest answer is that the Radius Ring™ produces a traditional "radius of hollow" (ROH) sharpening. Unless you know you skate on a flat-bottom profile, you will likely want to choose the Radius Ring at checkout. The Radius Rings work for both player skates and goalie skates. The FIRE Ring™ produces a flat-bottom cut with radius edges. You can find more information on the Grinding Rings page or in this blog post.

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5.0
Rated 5.0 out of 5 stars
Based on 61 reviews
Total 5 star reviews: 58 Total 4 star reviews: 3 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
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61 reviews
  • CS
    Chris S.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Original Sparks

    The radius rings give you selection on edges for all different types of skaters. I have had a Sparx for years now, in fact I believe I have the first generation of sharpeners. Keeping it clean and replacing the filter when needed has allowed the machine to stay in great working order.

    The Sparx is very easy to use, in fact both my (15 &12 yrs) now sharped there own skates. Living in a small town where getting your skates sharpened can be a challenge, but the Sparx has changed all that.

    I would not hesitate to recommend owning a Sparx.

  • CJ Profile picture for Christopher J.
    Christopher J.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    9 months ago
    Great Rings

    So far so good. Used about 20% of the ring so far. Minimal burrs and consistent cut end to end.

    5/8" rings are good for me (180lbs, above average skater) and my 12 y/o son (80lbs above average skater)

    1/2" rings are good for younger lighter players or for players that prefer more grip and a little less glide.

  • HT
    Heath T.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    12 months ago
    I wish I would have bought this Sparx 3 sooner

    I currently use the 1/2" and 5/8" radius ring. The beam unit sure helps with correct adjustments. I have 3 kids and multiple Teammates dropping off skates to get sharpened. Im so glad I don't have to drive across Saskatoon a wait hours to get my kids skates done.

    Thanks

    Sparx

  • BC
    BRADLEY C.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    16 seconds ago
    So far No Complaints

    Used on 3 different pairs of skates and happy with results

  • MV
    Marc V.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    6 days ago
    Radius Ring 1/2"

    Used the 1/2" as a starter ring. Does a great job! Would recommend

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