Which barbells are these 28mm weight collars compatible with?

The 1657 collars are designed for barbells with 28mm-diameter adaptors, such as those used for the Super Pump system and rack pump kits. The 28mm bore makes them specific to this type of equipment; they are not compatible with standard 50mm Olympic barbells.

How much weight can these collars safely support?

The maximum stated load capacity is 20 kg per collar. As this is a pair, the system can handle up to 40 kg in total on both sides of the barbell. This capacity makes them suitable for use with moderate loads typical of pump training and metabolic training.

What is the advantage over traditional disc-holding springs?

Plastic-reinforced collars offer superior ease of fitting and removal: they do not require manual expansion like metal clip springs, which can be stiff and difficult to open. The locking mechanism is just as effective as that of the springs but significantly quicker, making it ideal for circuits and dynamic training sessions.

What material are these collars made of?

They are made from reinforced plastic, a composite material that combines mechanical strength with lightness. This composition ensures durability whilst maintaining a low weight of 200 grams for the pair, without compromising the effectiveness of the clamping action on pump discs.

Can I use them with vinyl, neoprene or PU pump plates?

Yes, the 1657 collars are compatible with all types of 28mm pump plates available in the catalogue: vinyl, neoprene and PU. The locking system works regardless of the material of the plates, provided they have the standard 28mm centre hole.

How much do the collars weigh individually?

The total weight of the pair is 0.2 kg (200 grams), so each collar weighs around 100 grams. This low weight does not significantly affect the balance of the barbell and is negligible compared to the weight of the plates used in training.

Are they quicker to use during pump circuits?

Yes, their practicality is particularly evident in circuit training and pump classes, where you need to change the weights quickly. Unlike clip-on springs, which require manual force to be expanded and fitted, these collars can be attached in a single swift movement, reducing downtime between sets.

Are there any alternatives with different diameters?

For standard 50mm Olympic barbells, Sidea offers specific collars in the category dedicated to 50mm collars. The 1657 collars remain the option for the 28mm pump system. For this same diameter, item no. 1656 is also available: a pair of traditional steel disc-holding springs.

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: Sidea Payment Options.

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 Acquisti in Rete PA platform. 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 Terms and Conditions of Sale page.

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 for StrongFirst and Luxiaojun, exhibiting at the FIBO international trade fair and technical sponsor of the Summit of Strength. Every product is developed with a focus on durability, functionality and suitability for real-world use. The Gym Design service offers bespoke design with 3D renderings. A warehouse covering over 4,000 m² in Gambettola (FC) ensures rapid order fulfilment, direct technical advice and a special price list for professionals and amateur sports clubs (ASD).

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1657 Collar Lock Pump Bar Ø 28 mm

7,63€ FEES and TAXES NOT INCLUDED

Pair of disc clamp collars for barbells with 28 mm diameter adapters. Made of filled plastic, the 28 mm collars are very effective in clamping discs, but above all practical in comparison to traditional clip springs, which can be difficult to expand and insert on the barbell.

ATTENTION! 28 mm bore

View more product details >>

View data sheet >>

Disponibile

1657 Collar Lock Pump Bar Ø 28 mm

0031V-0033V 28 mm Super Pump Neoprene Plates

0031V-0033V 28 mm Super Pump Neoprene Plates

Weight

Clear

~~6,10€ 27,45€Fascia di prezzo: da 6,10€ a 27,45€~~ 3,66€ 16,47€ FEES and TAXES NOT INCLUDED

1133 Vinyl Super Pump Kit 18 Kg

1133 Vinyl Super Pump Kit 18 Kg

Disponibile

89,98€ FEES and TAXES NOT INCLUDED

New installations - Gym Design projects

Statutory guarantee of conformity: 2 years for consumers. See the official notice - Read the page - europa.eu/youreurope/guarantees

Spare parts and repairs: Spare parts for this product are available in the section Spare parts, with up-to-date availability and prices. Maintenance instructions can be found in the manual supplied with the product. There are no restrictions on repairs.

SKU: 1657 Categorie: Collar & spring, Collars 28mm, SuperPump kit-rack, Catalogue Products Tags: Disc spring collars, Superpump Brand: Sidea

Pair of disc stop collars diam. 28 mm

Pair of disc stop collars for barbell with 28 mm diameter adapters (such as those used for the Super Pump).

Made of filled plastic, the collars are very effective in clamping the discs, but above all practical compared to traditional clip springs, which can be difficult to expand and insert on the barbell.

Maximum collar strength: 20 kg

Weight	0,2 kg

TECHNICAL SHEET

The 1657 collars are designed for barbells with 28mm-diameter adaptors, such as those used for the Super Pump system and rack pump kits. The 28mm bore makes them specific to this type of equipment; they are not compatible with standard 50mm Olympic barbells.
The maximum stated load capacity is 20 kg per collar. As this is a pair, the system can handle up to 40 kg in total on both sides of the barbell. This capacity makes them suitable for use with moderate loads typical of pump training and metabolic training.
Plastic-reinforced collars offer superior ease of fitting and removal: they do not require manual expansion like metal clip springs, which can be stiff and difficult to open. The locking mechanism is just as effective as that of the springs but significantly quicker, making it ideal for circuits and dynamic training sessions.
They are made from reinforced plastic, a composite material that combines mechanical strength with lightness. This composition ensures durability whilst maintaining a low weight of 200 grams for the pair, without compromising the effectiveness of the clamping action on pump discs.
Yes, the 1657 collars are compatible with all types of 28mm pump plates available in the catalogue: vinyl, neoprene and PU. The locking system works regardless of the material of the plates, provided they have the standard 28mm centre hole.
The total weight of the pair is 0.2 kg (200 grams), so each collar weighs around 100 grams. This low weight does not significantly affect the balance of the barbell and is negligible compared to the weight of the plates used in training.
Yes, their practicality is particularly evident in circuit training and pump classes, where you need to change the weights quickly. Unlike clip-on springs, which require manual force to be expanded and fitted, these collars can be attached in a single swift movement, reducing downtime between sets.
For standard 50mm Olympic barbells, Sidea offers specific collars in the category dedicated to 50mm collars. The 1657 collars remain the option for the 28mm pump system. For this same diameter, item no. 1656 is also available: a pair of traditional steel disc-holding springs.
Sidea offers a range of instalment payment options to make it easier to purchase professional equipment. Please see the dedicated page: Payment options Sidea.
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.
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.
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.
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.