Roll Line Formula Wheels

Hardness:  White = 88A
Diameter:  62mm
Compound:  Cast Urethane BiCompound Formula
Hub Info:  Large Hub, Outside is Silver Chromed, White Hub

The Formula Wheels continue the Grease line of wheels (just 1mm smaller in diameter) , with the absolute MOST GRIP specifically designed for Hardball Hockey, Roller Derby, JAM Skating, and is the all round best JAM, Skate, & Party Wheels available today. Roll-Line has reinvented the wheel giving it properties that are normally not achievable in the one wheel, Tight Grip and Super Roll. Roll-Line based the design on that of the Low Rider Tire concept. Large Hub and a Smaller, Thinner Tread, and produced one of the LIGHTEST, TIGHTEST, and BEST ROLLING wheels available. Roll-Line has developed the Hub which is incredibly Strong, very Light, and with extremely Close Tolerances for Roundness, Trueness, and for the Cage where the Bearings and Spacers are mounted. The Roll-Line Tread is a Cast Urethane BiCompound Formula, which provides Tight Grip, without the tire compression that is normally associated with a wheel this tight. The lack of tire compression, along with the thinner tread, mounted on the Roll-Line Hub, is what provides the INCREDIBLE ROLL. The Formula 88A (maximum grip, but still with great ROLL) is for skating surfaces with very little grip. The outside face of the Hubs on the Formula are Silver Chromed, while the color of the back side of the hub is White and identifies which hardness the wheel, which is 88A.

The softer the wheel, or lower Shore “A” hardness number, the more the grip and slightly less roll. The harder the wheel, or higher Shore “A” number, the more the roll, with slightly less grip.

It is almost always recommended to use spacers in the wheels, when using standard 7mm bearings. Long ago, before the use of Lock Nuts (the nuts that have the Nylon Plastic inserts) to hold the wheels on the axles, Jam Nuts were used, but when the spacer was not as wide as the web of the wheel, or the wheel was not machined accurately, the bearings would lock up, the nut had to be tight, and could not be “backed-off”. This method, of locking the Axle Nut down, did promote proper bearing alignment and did increase the diameter of the axle from 7mm to approximately 14mm, because everything was locked down, which also saved the problems of bent axles. Today we do use Lock Nuts. It is still very advisable to lock everything down (especially for FreeStyle, Jam, and Roller Derby Skaters). Roll-Line does provide Spacers for Roll-Line Wheels with each pair of Frames or they can be purchased separately. Properly locking the Wheels down when using standard bearing types, will also promote longer bearing life.
The new Roll-Line 7mm MicroBearing System , provides an absolutely Incredible ROLL (significantly more roll than even the old Snyder Super Fafnir bearings, which used to be the best). The Roll-Line MicroBearing System fits ONLY Roll-Line Frames and DO NOT Require or Use Spacers between the bearings. These MicroBearings are mounted like standard bearings with the shields