Still the fastest gryo on the planet*, the 250Hz range has been certified to 15,000rpm but will clock well in excess of 16k in the right hands these days, such is the precision of balance on that 250Hz rotor.
250Hz balls are available with an inbuilt digital speed meter (termed: 250Hz Pro) or without (termed: 250Hz Classic)
• Shell Colours: Amber or Blue • Product weight: 262g • Top speed of 15,000rpm • Supplied with: 2 starting chords, instructions, • Warranty: Manufacturers lifetime warranty on all parts • A safe, effective way to strengthen hands, wrists, arms & fingers • Perfect for increasing handlebar grip strength, musical dexterity or even relieving RSI and arthritic conditions!
Sports that benefit from the Powerball:
• Golf, Tennis, Squash • All forms of Biking! • Any sport that requires upper arm strength
Buy Powerball Nutrition & Training from Chain Reaction Cycles, the World's Largest Online Bike Store.