Why do the extra-long handles make a meaningful difference in the crunch?

Short handles on crunch machines require the user to flex the shoulders upward significantly to reach the grip before the set begins. When shoulder mobility is limited — which is common across a general commercial membership — the shoulder reaches a mobility boundary before the trunk can flex fully, and the resulting compensation is the upper back pulling into spinal extension rather than the trunk folding forward in spinal flexion. This converts the abdominal crunch into a partial crunch with a compromised spine position and reduced abdominal isolation. The extra-long handles on the DRE8035 are reachable at a lower, more comfortable shoulder angle so the shoulder mobility variable is removed from the equation and the trunk can flex cleanly on every rep.

What makes the linkage-driven arm mechanism different from a standard fixed-pivot crunch arm?

A fixed-pivot crunch arm rotates around a single point, which produces a circular arc. The spine does not flex in a fixed circular arc — each vertebral level contributes progressively to the forward fold as the trunk flexes, meaning the effective pivot point of the abdominal shortening shifts through the movement. A fixed pivot arm therefore diverges from the abdominal muscles' actual shortening direction at the start or the end of the arc, producing either a loose-feeling start or a jammed, uncomfortable peak position. The linkage-driven arm on the DRE8035 adjusts the effective pivot point through the arc by using multiple pivot points in series, staying aligned with the trunk's actual flexion path from the starting position through to peak contraction.

What is the Dynasty Flex-Stack System and why does it matter for abdominal training?

The Dynasty Flex-Stack System delivers a true 1:1 felt weight ratio throughout the crunch arc. This means the selected stack weight is the resistance the abdominals work against from the fully extended starting position through to peak contraction and back through the eccentric return. This is particularly relevant on the DRE8035 because the slow eccentric return — where the abs lengthen under load back to the fully extended position — is where the most productive hypertrophy stimulus for abdominal wall development is generated. The Flex-Stack system maintains consistent resistance through this return rather than reducing it, and the selectorized format allows instant drop sets that extend abdominal time under tension within a session beyond single working weight failure.

What Dynasty Fitness machines pair with the DRE8035 for a complete core training area?

The DRE8035 covers spinal flexion for the rectus abdominis and obliques through the selectorized crunch. Pair it with the Multi Back Extension DRE8040 for spinal extension and erector spinae development that provides the posterior chain counterpart to the abdominal flexion work — training both sides of the trunk from dedicated selectorized stations. The Hip Abductor/Adductor DRE8020 adds core stabilisation demand through the hip abduction and adduction movements that involve the lateral hip and core as secondary stabilisers. Together these three machines cover the complete core training area from dedicated selectorized stations across the anterior, posterior, and lateral trunk musculature.

Exercises and muscles targeted

The DRE8035 covers the three primary abdominal muscle groups through its 3-position seat. The standard position trains the rectus abdominis through direct spinal flexion, while the angled positions add a lateral component that shifts emphasis to the internal or external obliques.

Exercise	Muscles Targeted
Abdominal Crunch (standard seat)	Rectus Abdominis (primary), Transverse Abdominis (co-contraction), Hip Flexors (secondary, minimised by leg pads)
Oblique Crunch (angled seat)	External Obliques, Internal Obliques (primary), Rectus Abdominis (secondary)
Isometric Hold (peak flexion)	Rectus Abdominis (sustained isometric), Transverse Abdominis, Obliques (sustained, depending on seat angle)
Slow Eccentric Crunch	Rectus Abdominis (eccentric lengthening for hypertrophy stimulus)
Drop Set	Rectus Abdominis, Obliques (extended time under tension via instant stack drops)
Multi-Angle Giant Set	Rectus Abdominis, Internal Obliques, External Obliques (trained across all three seat positions in one session)

How to setup and use

Setting Up the DRE8035 Abdominal Crunch

Select the seat angle using the pop pin for your target muscle this session.
Sit on the wide seat with your full thigh length supported.
Position both lower legs under the firm leg pads, secure and snug.
Let your back rest against the pelvic pad, allowing the guided posterior tilt.
Grip the extra-long handles at the point requiring no shoulder effort.

Performing the Crunch

Flex your trunk forward by contracting your abdominals, not by pulling with your arms.
Crunch to full spinal flexion and squeeze for one to two seconds at peak.
Return under control over two seconds, letting the abs lengthen fully.
Keep your pelvis and legs anchored throughout; if your hips lift, reduce the load.
For oblique sets, change the seat angle between sets using the pop pin.

Who this machine is built for

Serious home gym builders: Covers the rectus abdominis and both oblique groups from one 53"x55" station without shoulder strain or hip flexor compensation.

Commercial gym owners: Extra-long handles and the pelvic pad make the machine accessible regardless of shoulder mobility, one of the most common crunch machine barriers.

Personal training studios: The pelvic and leg pad system converts common technique errors into mechanical constraints, freeing the trainer to focus on tempo and contraction quality.

Bodybuilders and physique athletes: Progressive loaded isolation with correct spinal flexion mechanics builds rectus separation and oblique waist definition beyond bodyweight ab work.

University and college athletic departments: Supports core strength programming for rotational power transfer and spinal injury prevention with trackable progressive loading.

Physical therapists and sports medicine practitioners: Stable pelvis support and leg anchoring provide controlled flexion loading, with range following the practitioner's programme.

Owner's Manual

Access the complete assembly guide, parts list, and maintenance schedule below.

Download Owners Manual

Shipping & Delivery

All Dynasty Fitness equipment ships free across the 48 contiguous US states via freight carrier. If the product description says preorder, we'll send you an estimated delivery date via email.

Estimated delivery: 7–14 business days from order confirmation. You will receive a tracking number and a delivery window confirmation call before your shipment arrives. Deliveries are curbside standard, white glove delivery to room of choice is available at checkout.

Returns: Free within 30 days of delivery. Items must be in original condition and packaging. Refunds processed within 5 business days of return receipt.

Questions? Contact our team at:
📧Email: info@thedynastyfitness.com
📞Call: +1 (213)-584-0858

Need a buying guide?

Looking for one to one support before making final decision?
Feel free to contact us. Our expert support team would love to assist you.

Need Installation Help?

We have partnered with another company to help provide installation around the country. Please use the link below to see the price per machine for installation
See Installation Rates

Payment & Security

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Save 10%

Abdominal Crunch DRE8035

$2,649.00

$2,649.00 ~~$2,949.00~~ 10% off (Save$300.00 )

Commercial Grade
Pay With HFA/FSA

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Weight Stack: 210lb

210lb 250lb 275lb

The DRE8035 Abdominal Crunch is a selectorized core machine with extra-long handles that remove shoulder mobility as a limiting factor, a pelvic pad angled to match natural posterior tilt, and linkage-driven arms that follow the spine's actual flexion curve. A 3-position seat shifts emphasis between the rectus abdominis and both oblique groups.

Built at 53"x55"x63" with a 210 lb Dynasty Flex-Stack stack, the DRE8035 delivers complete abdominal wall coverage from one station.

Extra-long handles: Reachable without shoulder flexion, preventing the spinal extension that shoulder mobility limits usually cause.
Angled pelvic pad: Guides the pelvis into correct posterior tilt passively, stopping hip flexors from taking over as abs fatigue.
Linkage-driven arms: Follow the spine's true flexion curve rather than a fixed radius, for a consistent feel start to finish.
3-position seat: Shifts the crunch path to target rectus abdominis, internal obliques, or external obliques from one machine.

Watch How To Install Abdominal Crunch DRE8035 | Step-by-Step Assembly Guide

Limited time offer

Get 20% off when you order 4 or more pieces of equipment!

Exercises and muscles targeted

Exercise	Muscles Targeted
Abdominal Crunch (standard seat)	Rectus Abdominis (primary), Transverse Abdominis (co-contraction), Hip Flexors (secondary, minimised by leg pads)
Oblique Crunch (angled seat)	External Obliques, Internal Obliques (primary), Rectus Abdominis (secondary)
Isometric Hold (peak flexion)	Rectus Abdominis (sustained isometric), Transverse Abdominis, Obliques (sustained, depending on seat angle)
Slow Eccentric Crunch	Rectus Abdominis (eccentric lengthening for hypertrophy stimulus)
Drop Set	Rectus Abdominis, Obliques (extended time under tension via instant stack drops)
Multi-Angle Giant Set	Rectus Abdominis, Internal Obliques, External Obliques (trained across all three seat positions in one session)

How to setup and use

Setting Up the DRE8035 Abdominal Crunch

Select the seat angle using the pop pin for your target muscle this session.
Sit on the wide seat with your full thigh length supported.
Position both lower legs under the firm leg pads, secure and snug.
Let your back rest against the pelvic pad, allowing the guided posterior tilt.
Grip the extra-long handles at the point requiring no shoulder effort.

Performing the Crunch

Flex your trunk forward by contracting your abdominals, not by pulling with your arms.
Crunch to full spinal flexion and squeeze for one to two seconds at peak.
Return under control over two seconds, letting the abs lengthen fully.
Keep your pelvis and legs anchored throughout; if your hips lift, reduce the load.
For oblique sets, change the seat angle between sets using the pop pin.

Who this machine is built for

Serious home gym builders: Covers the rectus abdominis and both oblique groups from one 53"x55" station without shoulder strain or hip flexor compensation.

Commercial gym owners: Extra-long handles and the pelvic pad make the machine accessible regardless of shoulder mobility, one of the most common crunch machine barriers.

Personal training studios: The pelvic and leg pad system converts common technique errors into mechanical constraints, freeing the trainer to focus on tempo and contraction quality.

Bodybuilders and physique athletes: Progressive loaded isolation with correct spinal flexion mechanics builds rectus separation and oblique waist definition beyond bodyweight ab work.

University and college athletic departments: Supports core strength programming for rotational power transfer and spinal injury prevention with trackable progressive loading.

Physical therapists and sports medicine practitioners: Stable pelvis support and leg anchoring provide controlled flexion loading, with range following the practitioner's programme.

Owner's Manual

Access the complete assembly guide, parts list, and maintenance schedule below.

Download Owners Manual

Shipping & Delivery

All Dynasty Fitness equipment ships free across the 48 contiguous US states via freight carrier. If the product description says preorder, we'll send you an estimated delivery date via email.

Returns: Free within 30 days of delivery. Items must be in original condition and packaging. Refunds processed within 5 business days of return receipt.

Questions? Contact our team at:
📧Email: info@thedynastyfitness.com
📞Call: +1 (213)-584-0858

Need a buying guide?

Looking for one to one support before making final decision?
Feel free to contact us. Our expert support team would love to assist you.

Need Installation Help?

We have partnered with another company to help provide installation around the country. Please use the link below to see the price per machine for installation
See Installation Rates

Payment & Security

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Abdominal Crunch DRE8035

$2,649.00

$2,649.00 ~~$2,949.00~~ 10% off (Save$300.00 )

Key Features

Extra-Long Rubber-Coated Handles

The handles are longer than standard and reachable at a lower shoulder angle, removing the shoulder mobility variable that causes short-handle machines to pull the spine into extension instead of flexion. The rubber coating gives a secure grip without added shoulder tension.

Rear Pelvic Support Pad

The pad is angled to match the natural posterior pelvic tilt that occurs during an effective crunch. Sitting against it guides the pelvis into the correct position passively, preventing the hip flexors from taking over as the abs fatigue through a set.

3-Position Seat Adjustment

Each of the three pop-pin positions changes the crunch path angle. The standard position loads the rectus abdominis directly, while the angled positions add a lateral component that shifts primary emphasis to the internal or external obliques.

Linkage-Driven Moving Arms

A multi-pivot linkage changes the arm's effective pivot point through the arc rather than rotating around one fixed point, matching how the spine actually flexes. This keeps the resistance path aligned with the abs from the stretch to peak contraction.

Wide Seat and Firm Leg Pads

Full thigh support reduces point pressure at the seat edge, and moderately firm leg pads resist the upward pull of the hip flexors under load. This keeps the hip angle locked through the set rather than losing anchor as fatigue sets in.

Product Information
Product Name	Abdominal Crunch
Model	DRE8035
Series	DRE80 Selectorized Series
Product Type	Selectorized Abdominal Crunch Machine
Function	Seated abdominal crunch — spinal flexion isolation for full abdominal wall development
Target Muscles	Rectus Abdominis (standard seat), Internal and External Obliques (angled seat positions), Transverse Abdominis (secondary co-contraction)
Resistance System	Dynasty Flex-Stack System — 1:1 felt weight ratio
Grade	Commercial
Colour	Black
Dimensions and Weight
Length	53 in (133.9 cm)
Width	55 in (140.0 cm)
Height	63 in (160.2 cm)
Net Weight	639 lbs (290 kg)
Weight Stack
Standard Weight Stack	210 lbs
Upgraded Weight Stack	250 lbs — contact Dynasty Fitness
Adjustability and Body Support
Seat Angle Positions	3 positions — pop pin, targets rectus abdominis and both oblique groups
Rear Pelvic Pad	Angled to match natural posterior pelvic tilt — stabilises pelvis, aligns with abdominal functional path
Seat Design	Wide — full thigh support, generous legroom, minimises unwanted hip movement
Leg Pads	Moderately firm — locks hip angle, prevents hip flexor compensation
Handles and Mechanism
Handles	Extra-long, rubber-coated — no excessive shoulder flexion required, prevents spinal extension
Arm Mechanism	Linkage-driven — follows natural spinal curvature through crunch arc
Bearings	6205-2Z x8
Pivot Shafts	x4 — multi-pivot linkage for spine-curve-matched arm path
Frame and Construction
Indoor Use Only	Yes

Q: Why do the extra-long handles make a meaningful difference?

A: Short handles require significant shoulder flexion to reach, and when shoulder mobility is limited, the shoulders pull the spine into extension instead of letting the trunk flex forward cleanly. The extra-long handles are reachable at a lower shoulder angle, removing that mobility variable so the trunk flexes fully on every rep.

Q: What does the 3-position seat adjustment change about the exercise?

A: The standard position aligns the crunch path straight forward, loading the rectus abdominis through pure spinal flexion. The angled positions introduce a lateral component that shifts primary emphasis to the internal or external obliques, covering all three abdominal muscle groups from one station.

Q: Why does the rear pelvic pad improve abdominal engagement?

A: An effective crunch involves the pelvis tilting posteriorly as the abs contract. Without that tilt, the hip flexors progressively take over as the abs fatigue. The angled pad guides the pelvis into the correct position passively, so no deliberate pelvic tilt technique is needed under load.

Q: What makes the linkage-driven arm mechanism different from a fixed-pivot arm?

A: A fixed-pivot arm rotates around one point, but the spine flexes with a shifting effective pivot as each vertebral level contributes to the fold. A fixed pivot diverges from that path at the start or end of the arc. The linkage-driven arm uses multiple pivot points to stay aligned with the trunk's actual flexion path throughout.

Q: What is the Dynasty Flex-Stack System and why does it matter here?

A: It delivers a true 1:1 felt weight ratio through the full crunch arc, including the eccentric return where much of the abdominal hypertrophy stimulus is generated. The selectorized format also allows instant drop sets, extending time under tension beyond a single working weight failure point.

Q: What Dynasty Fitness machines pair with the DRE8035 for complete core training?

A: Pair this with a Multi Back Extension for spinal extension and erector spinae development that complements the abdominal flexion work, and a Hip Abductor/Adductor for additional core stabilisation demand through lateral hip movement.

Commercial Selectorized Machines. Engineered to Perform.

Dynasty Resistance Elite

The Dynasty Resistance Elite is Dynasty Fitness's flagship selectorized series, built around the Dynasty Flex-Stack System that delivers a true 1:1 felt weight ratio across the majority of the lineup. What you select on the stack is exactly what you lift, giving every session accurate, progressive resistance from the first rep to the last.

The series covers the complete commercial training floor. ISO-lateral pressing and pulling machines including the ISO-Lateral Chest Press, ISO-Lateral Shoulder Press, and ISO-Lateral Seated Row train each side of the body independently through its own natural arc, eliminating the compensation that fixed bilateral machines allow. Dedicated lower body stations including the Leg Press/Hack Squat, Leg Curl/Leg Extension and Glute Drive cover compound and isolation lower body training from selectorized stations built for heavy daily volume. A complete cable training ecosystem spans from the Adjustable Cable Crossover and Dual Adjustable Pulley through to the 4-Stack, 5-Stack, and 8-Stack Multi Station systems for facilities that need multiple concurrent training zones.

Every machine is built from heavy-duty commercial steel, finished in matte black, and backed by Dynasty's lifetime frame warranty. This is commercial-grade equipment at a price point that makes it accessible to every serious training environment.

Explore the Elite Series

Commercial Machines, Home Gym Prices

Commercially Engineered, Available to All

OUR COMMITMENT

Every machine that leaves Dynasty Fitness carries the same promise: it is built to the commercial standard that professional training environments demand, priced so that standard is no longer exclusive to them, and backed by the support and warranty coverage that a long-term training investment deserves.

We are committed to equipment that stands the test of time — and to making sure the people who train the hardest have access to the tools that match their effort.