Ripstik / Ripstick
2 Wheel Skate
High Speed Wheels
ZERO GRAVITY PU 80MM 85A WHEELS & OG HIGH PERFORMANCE ABEC 7 BEARINGS
TECHNICAL INFO
Most standard wheels are made mainly of polyurethane. Some wheels are designed for sliding and use a mix of different durometers, or plastic rings. Wheels are classified on diameter, hardness, rebound, profile and core. Some are even classified by weight. However, most often you will see only the diameter and hardness printed on the wheels (e.g. 76mm 78A or 70mm 82A, etc.).
The diameter of the wheel means simply how tall the wheel is. The usual diameters range from 43mm to 80mm. Most common sizes you'll come across for recreational skating are 72 and 76mm. Skaters wanting speed tend to use 80mm wheels, although 76mm's are used too, depending on the skates and racing course and distance.
In general, taller wheels will let you cruise faster but take longer to spin up. Taller wheels also tend to be less maneuverable than shorter wheels. Shorter wheels are cheaper, but in general don't last as long since they have less material to wear down overall, given the same durometer. However since many of the small wheels are for stunts, they all tend to be sold in higher durometers anyway (they slide better), so they won't necessarily wear out that quickly.
70mm 72mm 76mm 80mm
Average speed ____________________________________________ Fast
Quick Turns ______________________________________ Slower Turns
Durometer is a relative hardness measure frequently used for rubber and plastic products. There are several scales, with the "A" scale (hence the 78A, etc.) used for wheels. The number is the rating from 0-100, with 0 being no resistance and 100 being very hard plastic.
Recreational wheels generally run from 74A to 82A. For outdoors, the softer the wheel, the better the shock absorption. The trade-off is that softer wheels wear out faster. Harder wheels, since they have less drag, are preferred on indoor surfaces which are usually very smooth.
Some skaters vary their wheel durometer depending on the temperature outside. Cold weather will mean the ground is harder so soft wheels are more suitable. In really warm weather the road might start literally melting, in which case a high durometer setup would be more preferable.
74A 78A 82A 85A
Average Wear_________________________________Longest Wear
High Grip____________________________________Average Grip
High Rebound______________________________Average Rebound
Low Body Weight__________________________High Body Weight
Smooth Ride_____________________________________Hard Ride
YOU ARE BIDDING ON 2 SETS (4 WHEELS) (8 BEARINGS)