DISC CLAMPS AND SPRINGS

Domande frequenti - Collari Molle Ferma Dischi

• What is the difference between a disc-holding spring and a collar lock?
  The disc-holding spring compresses laterally and can be fitted by sliding it onto the sleeve in less than two seconds: handy for sessions involving frequent load changes, but offering a less secure hold under heavy loads or repeated impacts. The collar lock uses a mechanical lever that locks the collar securely in place, offering greater safety during explosive exercises such as cleans, jerks or heavy squats. The choice depends on the context of use, not just the load.
• Can I use a 50 mm collar on a 28 mm pump barbell?
  No. The inner diameter of the collar must match the barbell sleeve exactly. A 50 mm collar will not lock properly onto a 28 mm sleeve and will not provide a secure hold. SuperPump barbells and group training pump bars specifically require 28 mm collars and springs, which are available in two versions in the Sidea catalogue.
• Is the spin collar compatible with Olympic competition barbells?
  Yes, provided you choose the correct version. The Olympic Spin Collar 9016/2 is specifically designed for 50 mm Olympic barbells, with a reinforced construction compared to the standard 9016 version. The rotating clamping system does not damage the surface of the sleeve, which is particularly important for barbells with a chrome or waxed steel finish that you wish to preserve over time.
• How many times a day can disc retainer springs be fitted and removed before they lose their effectiveness?
  Steel springs are designed to withstand thousands of assembly cycles. In high-volume settings such as CrossFit boxes with 6–8 sessions a day, it is normal to replace them after 12–18 months of intensive use. A sign of wear is a reduction in tension: the spring slides along the sleeve without offering any resistance. It is always advisable to replace them in pairs.
• Can any weightlifting collar be used in an Olympic weightlifting competition?
  In IWF competitions, approved collars must weigh exactly 2.5 kg each (5 kg in total per pair) and be included in the total weight of the loaded barbell. Commercial training collars — spring collars, spin collars, lock collars — have different weights and are not a substitute for approved competition collars. For everyday training, however, any 50 mm collar will work fine.
• Are Sidea collars compatible with barbells from other manufacturers?
  Yes, provided that the sleeve diameter complies with the standard: 50 mm for Olympic barbells (IWF/IPF standard) and 28 mm for pump bars. These are the two universal diameters in the industry. Compatibility should be checked on the outer sleeve of the barbell, not on the central shaft, which in Olympic barbells measures 28–29 mm but has 50 mm sleeves.
• What instalment payment options are available?
  Sidea offers a range of instalment payment options to make it easier to purchase professional equipment. Please see the dedicated page: Payment options Sidea.
• I’m a fitness professional – can I get special rates?
  If you work in the fitness or sports sector, register on the website as a Professional or as an ASD to gain access to the price list reserved for industry professionals. Pro registration allows you to view exclusive discounts and special terms across the entire Sidea catalogue.
• Is Sidea listed on the MEPA for public sector procurement?
  Yes, Sidea is an authorised supplier on the MEPA (Public Administration Electronic Marketplace). Public bodies, schools, universities, local authorities and public sports facilities can purchase Sidea equipment via the platform Public Sector Online Procurement. For information on product codes and direct MEPA orders, please contact Sidea customer service.
• What are Sidea’s returns and warranty terms?
  Sidea guarantees the right to cancel within 14 days of delivery for all online purchases, in accordance with current legislation. Products must be returned undamaged and in their original packaging. For full details on returns, refunds and the warranty, please see the page Terms and Conditions of Sale.
• Why choose Sidea equipment?
  Sidea has been designing and distributing professional fitness equipment since 1999: over 25 years’ experience serving gyms, sports coaches, CrossFit boxes, personal training studios and enthusiasts of advanced home fitness. Official distributor StrongFirst e Luxiaojun, which is exhibiting at the FIBO international trade fair and is the technical sponsor of the Summit of Strength. Every product is designed with durability, functionality and suitability for real-world operational contexts in mind. The service Gym Design Offers bespoke design services with 3D renderings. A warehouse covering over 4,000 m² in Gambettola (FC) to ensure rapid order fulfilment, direct technical advice and a special price list for professionals and amateur sports clubs.