Bones SPF Deathbox 54mm 81b Skateboard Wheels

Bones SPF Deathbox 54mm 81b Skateboard Wheels

Regular price$69.99
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  • In stock, ready to ship

In Australia

For orders up to a total of $100, shipping and handling is a flat rate of $7.00For orders from $101 to $299, shipping and handling is $16.50For orders over $300, shipping and handling is free

For New Zealand

Express shipping and handling is $45.Standard International shipping is $30.

We can ship to other international locations, but please contact us for quote on shipping

All products sold by EXTREME SKATES come with standard manufacturing guarantees against faults. If a product is found to have a manufacturing fault we will replace it free of charge once we are satisfied that the fault is as a result of manufacturing and NOT from extreme riding or over use. Where it is practical to repair a faulty product then we will, or else at our discretion, we will replace the product. If the product fails due to wear and tear, accident, neglect or negligence, or if it is outside the warranty period, we will happily repair it for a reasonable charge. Please note, while we are happy to return and exchange a product, refunds will not be provided simply for change of mind or incorrect sizing.

Bones SPF Deathbox 54mm 81b Skateboard Wheels

The Bones SPF Deathbox 54mm 81b Skateboard Wheels are part of Bones' durable Skatepark Formula line.

ABOUT SKATEPARK FORMULA

Skatepark Formula™ (SPF) is very high quality urethane specifically formulated to resist flat-spotting on slick or smooth surfaces. This helps in maintaining a higher rebound for a quicker response and a faster roll.

Bones SPF Deathbox 54mm 81b Skateboard Wheels has a high resistance to abrasion while not compromising hardness and slide ability. Simply put Skatepark Formula wheels grip better on slick surfaces and are almost impossible to flatspot. They are the fastest, longest lasting wheel on the market today.

You won’t find our Skatepark Formula from any other wheel supplier so get a set and find out for yourself what the word on SPF is all about.

ABOUT DUROMETER B SCALE

Shore Durometer A Scale is good, but it does not cover the entire range of skate wheel hardness. This is very limited because the scale goes from 1 to 100 and anything over A. 95A does not compute accurately.

Shore Durometer B Scale is perfect for skate wheels because:

  1. It is very similar to the A Scale, but reads 20 points lower, allowing the useful scale to be extended by 20 points. This covers the entire hardness range of skate wheels in one scale. It uses the same soft spring as the A Gauge, but the conical gauge needle of the D Scale.
  2. Because the spring is soft, the B Scale gauge needle does not puncture the skin of the wheel surface. This results in the same reliable reading as the A Scale does.

Shore Durometer D Scale is designed for hard rubbers and rock hard urethanes. Not the soft, bouncy urethanes that are used in skate wheels. It has a very stiff spring behind its sharp conical needle and often punctures the skin of the wheel being measured. This results in a 5-10 points softer reading than is correct. Thus, Shore D Scale should not be used for wheels in the useful skate wheel range.

You can learn more about Bones Wheels SPF's here:

https://bones.com/why/skatepark-formula/

 

Brand BONES WHEELS
Wheel Core None
Wheel Diameter 54mm
Wheel Width     -
Wheel Hardness 81B = 101a
Wheel Formula SPF
Wheel Color White
Wheel Suggested Use Skateparks
Wheel Surface Smooth
Wheel Shape P5