Product Overview
Merrithew Onyx SPX Max Reformer with Vertical Stand and HPGB Bundle is a sleek, stylish addition to any fitness space. From the patented rolling carriage to the high-performance tension springs, every inch of the Onyx is a testament to superior design and craftsmanship.NOTE: This reformer is shipped with regular freight delivery of the machine on a pallet that is delivered outside; that is the standard FREE delivery that we offer. To request inside delivery with debris removal, there will be additional charges which must be discussed once the order is placed.
Including a Vertical Stand for space-saving storage and a High-Precision Gearbar, the Onyx is perfect for smaller studios and facilities with multipurpose exercise rooms to maximize earning potential.
Includes
• Reformer Box with footstrap
• Padded Platform Extender
• Metal Roll-Up Pole 2 lbs
• High Precision Springs Package – 5 Reformer Springs (3 × 100%, 1 x 50%, 1 x 25%)
• 5 neoprene spring covers for noise reduction
• Soft Reformer loops
• Patented Retractable Rope System – makes changing rope lengths a breeze!
• Carriage Stopper
• Easy-roll wheels on both ends of the Reformer
• Owner’s manual available
All the bells and whistles
Your SPX® Max with Vertical Stand comes complete with:
• Enhanced springs to withstand continuous, high-intensity use
• Durable vinyl upholstery
• Sleek aluminum rails and neoprene spring covers ensure a quiet ride
• Customizable user settings with 6 Gearbar, 6 carriage-stopping, 3 headrest and 4 footbar positions
• Retractable rope system for easy adjustments
Bundle also includes
• Reformer Box with footstrap
• Padded Platform Extender
• Metal Roll-Up Pole 2 lbs

Features
• Built to withstand continuous, high-intensity studio use with durable vinyl upholstery and dense EVA foam to provide maximum comfort and accurate proprioceptive feedback• Patented Retractable Rope System with recoiling rope reels for easy adjustments. Longer ropes add increased range of motion and fluidity to exercises – allowing for more programming options
• Carriage glides over sleek C-channel aluminum rails, using a patented rolling mechanism for a smooth, friction-free ride
• Enhanced Springs are built to withstand vigorous use with Jumpboards, Cardio-Tramp® Rebounders and other Reformer accessories and secure quickly and safely
• 6 Gearbar positions, 6 carriage stopping positions, 3 headrest positions, 4 footbar positions
• Robust and adjustable four-position footbar drops easily into cradles to regulate hip and knee flexion
• 1" thick wooden standing platform and pommel-style shoulder rests support a wide range of body weights
• Gearbar slots into three different positions to adjust tension easily
• Shoulder rests stay securely in place and detach easily for storage. When stacking, shoulder rests slide conveniently into brackets affixed to the frame and reinforced pulleybars detach and store without disengaging ropes
• Upgradeable – add a SPX® Max Plus™ Vertical Frame and Mat Converter for Cadillac functionality
• Optional Mat Converter allows for Matwork exercises on a comfortable, raised surface
• New Comfort Footbar is easier on sensitive feet and hands
• Easy-roll wheels make it a breeze to move or reposition
• A rolling base is available for added convenience when storing stacked Reformers
• Minimal assembly required
Specifications
Width | • 22 in • 56 cm |
Length | • 97.75 in • 246 cm |
Weight | • 128 lbs. • 58 kg |
Ceiling height requirements | • 101 in • 257 cm |
Weight capacity | • 350 lbs. • 158 kg |
Reformer carriage dimensions
• Width • 22 in • 56 cm
• Length • 38.5 in • 98 cm
• Height from floor • 9 in • 23 cm

Due to national shipping delays, order delivery times may be impacted.
Please click here to read more about the NATIONWIDE SHIPPING DELAYS
Please contact us directly for an exact ETA of your delivery. Most of our products have a regular handling time between 3-5 business days Please allow 3-15 business days for delivery.
Freight Orders Include FREE Delivery Appointment.
Some of our heavier machines require more customization and are made-to-order in our supplier’s manufacturing plants in United States. Once completed, they are carefully
inspected at the Quality Center, after which they are shipped using freight shipping carriers.
We know that sometimes you have to wait a little longer to get your order but it's always worth it!
Please click here to read more about our Order Shipping & Delivery.
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Exchanges for damages: Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make note of it when signing for delivery. If your item(s) do arrived damaged, please send photos to info@barbellflex.com and we will process an insurance claim on your behalf. Be advised that most of our suppliers request you (the buyer) to pay for shipping the item back to them for inspection for damaged returns or replacements. In some cases, we are able to waive the fee, however this is at the discretion of our supplier and on a one-time courtesy basis. The time it takes for your exchanged product to reach you will largely vary on your location. Should the item you return be over $75, we strongly encourage you to use a trackable shipping service with signature or shipping insurance! Note that we will not be able to provide replacements/refunds without photos of the damage. |
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Returns & Refunds: All new products purchased through BarbellFlex.com include a 30 Day Return Guarantee. Refunds will only be issued to the original credit card that you use when placing your order. Please click here to read more about our Returns & Exchanges. |
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We Put Our Customers First! Customer experience is our #1 priority. We understand that these products are available on other websites and we are very appreciative that you chose to do business with us. As such, we pride ourselves in providing a superior concierge sales and shopping experience to all of our customers, via email, phone, social media and live chat.
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Returns are easy, simply contact us to request a return for your item and we will work with you to get the process going. We'll get you a replacement or refund in a snap! Please check our Returns & Exchanges tab for more info! |
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In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down. Our 100% Price Guarantee has some limitations. Please click here to read more about our Price Match Guarantee. |
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We thank you for your incredible service!. With gratitude, we partnered with GovX to offer a discount on our store to our military, their spouses & dependents, first responders, government employees and our wonderful teachers. Please click here to read more about our GovX ID Military Discount. |
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Ordering from Barbell Flex is 100% safe and secure so you can rest easy. Your personal details are never shared, sold or rented to anyone either. We invested time and money to ensure our backend system is secure and robust. We care about your information as much as you do! |
90 days: Upholstery
1 year: Ropes, straps, spring clips, plastic pulley bar receptacle sleeves, comfort footbar, spring covers and plastic spring holders
2 years: All other Reformer components
For our full equipment warranty, see our warranty terms and conditions
Product Overview
Merrithew Onyx SPX Max Reformer with Vertical Stand and HPGB Bundle is a sleek, stylish addition to any fitness space. From the patented rolling carriage to the high-performance tension springs, every inch of the Onyx is a testament to superior design and craftsmanship.NOTE: This reformer is shipped with regular freight delivery of the machine on a pallet that is delivered outside; that is the standard FREE delivery that we offer. To request inside delivery with debris removal, there will be additional charges which must be discussed once the order is placed.
Including a Vertical Stand for space-saving storage and a High-Precision Gearbar, the Onyx is perfect for smaller studios and facilities with multipurpose exercise rooms to maximize earning potential.
Includes
• Reformer Box with footstrap
• Padded Platform Extender
• Metal Roll-Up Pole 2 lbs
• High Precision Springs Package – 5 Reformer Springs (3 × 100%, 1 x 50%, 1 x 25%)
• 5 neoprene spring covers for noise reduction
• Soft Reformer loops
• Patented Retractable Rope System – makes changing rope lengths a breeze!
• Carriage Stopper
• Easy-roll wheels on both ends of the Reformer
• Owner’s manual available
All the bells and whistles
Your SPX® Max with Vertical Stand comes complete with:
• Enhanced springs to withstand continuous, high-intensity use
• Durable vinyl upholstery
• Sleek aluminum rails and neoprene spring covers ensure a quiet ride
• Customizable user settings with 6 Gearbar, 6 carriage-stopping, 3 headrest and 4 footbar positions
• Retractable rope system for easy adjustments
Bundle also includes
• Reformer Box with footstrap
• Padded Platform Extender
• Metal Roll-Up Pole 2 lbs

Features
• Built to withstand continuous, high-intensity studio use with durable vinyl upholstery and dense EVA foam to provide maximum comfort and accurate proprioceptive feedback• Patented Retractable Rope System with recoiling rope reels for easy adjustments. Longer ropes add increased range of motion and fluidity to exercises – allowing for more programming options
• Carriage glides over sleek C-channel aluminum rails, using a patented rolling mechanism for a smooth, friction-free ride
• Enhanced Springs are built to withstand vigorous use with Jumpboards, Cardio-Tramp® Rebounders and other Reformer accessories and secure quickly and safely
• 6 Gearbar positions, 6 carriage stopping positions, 3 headrest positions, 4 footbar positions
• Robust and adjustable four-position footbar drops easily into cradles to regulate hip and knee flexion
• 1" thick wooden standing platform and pommel-style shoulder rests support a wide range of body weights
• Gearbar slots into three different positions to adjust tension easily
• Shoulder rests stay securely in place and detach easily for storage. When stacking, shoulder rests slide conveniently into brackets affixed to the frame and reinforced pulleybars detach and store without disengaging ropes
• Upgradeable – add a SPX® Max Plus™ Vertical Frame and Mat Converter for Cadillac functionality
• Optional Mat Converter allows for Matwork exercises on a comfortable, raised surface
• New Comfort Footbar is easier on sensitive feet and hands
• Easy-roll wheels make it a breeze to move or reposition
• A rolling base is available for added convenience when storing stacked Reformers
• Minimal assembly required
Specifications
Width | • 22 in • 56 cm |
Length | • 97.75 in • 246 cm |
Weight | • 128 lbs. • 58 kg |
Ceiling height requirements | • 101 in • 257 cm |
Weight capacity | • 350 lbs. • 158 kg |
Reformer carriage dimensions
• Width • 22 in • 56 cm
• Length • 38.5 in • 98 cm
• Height from floor • 9 in • 23 cm

Due to national shipping delays, order delivery times may be impacted.
Please click here to read more about the NATIONWIDE SHIPPING DELAYS
Please contact us directly for an exact ETA of your delivery. Most of our products have a regular handling time between 3-5 business days Please allow 3-15 business days for delivery.
Freight Orders Include FREE Delivery Appointment.
Some of our heavier machines require more customization and are made-to-order in our supplier’s manufacturing plants in United States. Once completed, they are carefully
inspected at the Quality Center, after which they are shipped using freight shipping carriers.
We know that sometimes you have to wait a little longer to get your order but it's always worth it!
Please click here to read more about our Order Shipping & Delivery.
![]() |
Exchanges for damages: Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make note of it when signing for delivery. If your item(s) do arrived damaged, please send photos to info@barbellflex.com and we will process an insurance claim on your behalf. Be advised that most of our suppliers request you (the buyer) to pay for shipping the item back to them for inspection for damaged returns or replacements. In some cases, we are able to waive the fee, however this is at the discretion of our supplier and on a one-time courtesy basis. The time it takes for your exchanged product to reach you will largely vary on your location. Should the item you return be over $75, we strongly encourage you to use a trackable shipping service with signature or shipping insurance! Note that we will not be able to provide replacements/refunds without photos of the damage. |
|
![]() |
Returns & Refunds: All new products purchased through BarbellFlex.com include a 30 Day Return Guarantee. Refunds will only be issued to the original credit card that you use when placing your order. Please click here to read more about our Returns & Exchanges. |
![]() |
We Put Our Customers First! Customer experience is our #1 priority. We understand that these products are available on other websites and we are very appreciative that you chose to do business with us. As such, we pride ourselves in providing a superior concierge sales and shopping experience to all of our customers, via email, phone, social media and live chat.
|
|
![]() |
Returns are easy, simply contact us to request a return for your item and we will work with you to get the process going. We'll get you a replacement or refund in a snap! Please check our Returns & Exchanges tab for more info! |
|
![]() |
In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down. Our 100% Price Guarantee has some limitations. Please click here to read more about our Price Match Guarantee. |
|
![]() |
We thank you for your incredible service!. With gratitude, we partnered with GovX to offer a discount on our store to our military, their spouses & dependents, first responders, government employees and our wonderful teachers. Please click here to read more about our GovX ID Military Discount. |
|
![]() |
Ordering from Barbell Flex is 100% safe and secure so you can rest easy. Your personal details are never shared, sold or rented to anyone either. We invested time and money to ensure our backend system is secure and robust. We care about your information as much as you do! |
90 days: Upholstery
1 year: Ropes, straps, spring clips, plastic pulley bar receptacle sleeves, comfort footbar, spring covers and plastic spring holders
2 years: All other Reformer components
For our full equipment warranty, see our warranty terms and conditions