The Pro Jump CZ-Series Bouncing Stilt Springs features the following specifications...

• Suitable For - The Adult Pro-Jump CZ-Series Springs are designed to fit the CZ-Series Exo and Exo Pro Pro-Jump Stilts as a replacement or upgrade part
• Compatible With - These stilt springs MAY also be compatible with other brands of Powerbocks (however we can not guarantee this ) including PoweriZer, PowerStrider, Fly Jumper, Jolly Jumper, Air Trekker, Air Runner, Speed Jumper, PowerStrider, 7 League Boots, PowerSkip and PoweriSer. If you are unsure after checking the photos and description, the Pro-Jump Forum (search Google) may be able to advise if you post photos of your Jumping Stilts.
• Hi-Tech Construction - Specially produced for Pro-Jump, the CZ50 black springs are manufactured using a carbon and glass fibre mix for the best balance of strength and flexibility
• Weight - The springs weigh in at approximately 990g each
• Quantity Supplied - Two springs are supplied
• What You Need To Fit - 4 bolts (not supplied) are needed to fit each spring to the frame (i.e. 8 bolts in total), and 2 bolts (not supplied) are required to attach each rubber sole (i.e. 4 sole bolts in total)
• Warranty - The Adult Exo Powerbock Springs come with a full 3 month warranty for piece of mind

Please Note: If you are buying a single spring to replace only one of the springs on your stilts, please check the number on the bottom end of the springs. This number ('50' upto '119') is the spring strength. To ensure your stilt springs are balanced choose the matching strength number from the size selection above ONLY if the spring has not had much usage. However, if the the springs have had a lot of usage it becomes difficult to correctly match the springs and you may want to replace the broken spring with a spring that is a few kg's lower than your original. In most cases we recommend if your springs have had a lot of usage you purchase a pair of springs rather than just one. Please click the Size Guide tab above for further details.

Adult Pro-Jump CZ-Series Spring Sizing Guide

The CZ-Series Sprung Stilt Springs are available in various sizes. Please use the guide below to help determine your correct size preference. This is guide for first time users who have no experience with jumping stilts. We usually find customers use their own discretion when buying replacement springs dependant on their own experience.

• If you are a person who takes part in sports which require strong leg muscles such as Parkour, Gymnastics, free running, swimming and are towards the top end of the guideline weights then you may want to consider moving to the next weight bracket if you are close to the upper limit of the suggested weight.
• This is a guideline only, if you need further advise please get in touch with our Pro-Jump Department by emailing admin@projump.co.uk or by asking advise of users on the Pro-Jump Forum

Model Names: The CZ-Series Stilts are available in the following models CZ60, CZ70, CZ80, CZ90, CZ100 and CZ110. Each model's number represents the user weight range for that model with a possible variant of 10kg. For example the model CZ60 may have spring strength of anything between 60kg to 69kg which is indicated by the number at the bottom of your spring. The higher the number is the stiffer the spring will be.

Choosing the correct weight:To find the size of spring we recommend for your weight, add 3kg to your actual weight (and add an additional 2kg ONLY IF the user takes part in activities which require strong leg muscles at least 3 times a week such as gymnastics, parkour, martial arts, rugby etc) and take the resulting number as the recommended spring strength. We have based our size guide using user feedback of our springs. Our testers varied from experienced PowerBockers, Parkour / Freerunning experts and those with gymnastic experience. We have adjusted the initial weights on the guide to accommodate for the "breaking in period" and the 9kg variant strength of each size bracket, then made adjustments according to user sporting ability between 3-5kg. Please note: M- and F-Series springs use a different sizing system and this recommendation does not apply to them.

Replacement Springs: Many experienced customers like to choose the exact weight of their replacement springs, therefore we have now given the customer a choice of weights we have in stock for each model rather than just the option of, for example, a CZ60 spring where you may receive anything between 60-69kg.

Please Note: If you are buying a single spring to replace only one of the springs on your stilts, please check the number on the bottom end of the springs. This number ('60' upto '119') is the spring strength. To ensure your stilt springs are balanced choose the matching strength number from the size selection above ONLY if the spring has not had much usage. However, if the the springs have had a lot of usage it becomes difficult to correctly match the springs and you may want to replace the broken spring with a spring that is a few kg's lower than your original. In most cases we recommend if your springs have had a lot of usage you purchase a pair of springs rather than just one.