Pronto M51
by Invacare (Model No. M51P)

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SureStep Suspension provides a smooth and stable ride over transitions up to 2" high.
List Price: $5,454.00
We Offer Interest-Free Financing Through Bill Me Later
Our low price includes:
  • FREE 5-Star 1-Year In-Home Service
  • FREE Curbside Delivery
  • 110% Low-Price Guarantee
  • Free Batteries
  • Free Shipping for Orders over $50
  • Flip-Up Arms
  • 5 Year Limited Warranty
80% of reviewers recommend this!
4.6 stars
Shipping Information  Shipping Details »


Leaves Warehouse In:  3-5 Business Days    Details
Ground Shipping:           FREE for orders over $50!
Expedited Shipping:       
2nd Day: $0.00          Overnight: $0.00
Expedited Shipping:       Unavailable


  • SureStep technology for driving over thresholds up to 2"
  • Turning radius of only 19.5"
  • 6 Wheels on the ground provide great stability
  • Choice of three upholstery options
  • Flip-up, adjustable width armrests

Key Specs

    • Top Speed: 4.30 mph
    • Turning Radius: 19.50"
    • Heaviest Piece: 107 lbs.
    • Battery Charge Distance: 12.00 miles
  • Weight capacity: 300 lbs.
  • Weight: 198 lbs.
  • View All Specs

Manuals, Literature & Videos for the Pronto M51

Overview of the Pronto M51

The Pronto M51 is a great indoor/outdoor power wheelchair with Sure Step® technology to ensure maximum stability. The Sure Step® suspension automatically adjusts to keep all six wheels on the ground at all times, even when clearing obstacles up to two inches. The M51 also includes the programmable MK5 electronic controller for precise, custom driver control.

It also has a medium-back van seat with semi-recline and adjustable armrests. This allows you to adjust the seat to the most comfortable position for your needs. This power wheelchair also features a sleek, stylish design with shrouds available in two great colors – deep blue pearl and candy apple red.

Choose the Pronto M51 powerchair, a great combination of power and performance.

What Makes This Different
The Invacare Pronto M51 has a tight, 19.5" turning radius, which makes it great to use in small spaces inside the home and out in public. In addition, the 2" ground clearance and 9º incline rating allow it to be used outdoors in uneven terrains.

Why We Like It
We like the great standard features of the M51. No need to pay extra for full-length height adjustable armrests and a full, supportive back. The Pronto M51 is also very durable and has the exclusive Sure Step suspension, you can't ask for better standard features.

What You Need to Know When Ordering
The Invacare Pronto M51 comes standard with a one-year in-home service contract. This service contract pays for a technician to come to your home in the event of an issue and he will assess and later repair your chair, free of charge. For added peace of mind, consider upgrading to the two- or three-year service plan. Also, the Compass HD is delivered via a freight company by a Curbside delivery service. The freight company will call and schedule a delivery time and bring the box to your home, but they will not bring it into your home. And, if you have any stairs leading to your door, they will leave the box at the base of the stairs. If you need additional service, consider the White Glove delivery option. This service will deliver your chair to a trained agent in your area and your chair will be unpacked and inspected for damage. The agent will then call to schedule a delivery time and bring the chair to you, in your home. Though our White Glove Delivery option includes the set-up of your power chair, comfort adjustments, like foot rest height, will need to be done by the caregiver or user.

Measuring Guide

View Detailed Measurements
Seat Depth1
Measure from the most posterior point of the body to the inside of the knee, minus at least two inches. Some prefer more leg overhang to make room for their hand when lifting their leg.

Back Height2
Measured from the seat base to the top of the chair back. Power wheelchair riders need upper back support, particularly for the moment of initial acceleration.

Hanger Angle3
Determines how far the toes extend away from the body, measured from the horizontal. A tighter angle allows the electric power wheelchair to turn around in less space. Depends in part on ability of the knee to bend towards the perpendicular.

Seat Width4
Determined by the widest point of the body from knee to hip, plus an inch to ensure room to move. Consider bulk of clothing, particularly a heavy winter coat, if relevant.

Front Seat to Floor5
Measure the leg from the back of the knee to the sole of the foot. Then subtract the thickness of the cushion when it is compressed. Next, add a minimum of two inches for footrest clearance. Electric power wheelchairs are almost never foot-propelled by the user - so excluding the additional two inch footrest height for propelling is very rare.

More Information on the Pronto M51

Specifications for the Pronto M51

Top Speed:    4.30 mph
Turning Radius:    19.50"
Ground Clearance:    2.60"
Heaviest Piece:    107 lbs.
Maximum Incline Rating:    9 ยบ
Battery Charge Distance:    12.00 miles
Drive Type:    Mid Wheel Drive
Foldable:    Yes
Disassembles:    No
Armrest Options:    Height Adjustable
Legrest Options:    Footplate
Elevating Legrests
Swing-Away Legrests
Seat Options:    Reclining Back
High-Back Seat
Captain's Seat
Seat Widths:    16"
Seat Depths:    16"
Back Height:    19"
Maximum Seat to Floor Height:    23"
Overall Width:    24.00"
Overall Length:    34"
Joystick Options:    Right
Adjustable Hanger Brackets:    Yes
Adjustable Angle Footplates:    No
Dampening Adjustment:    No
Frame Type:    Standard Power
Batteries:    U-1
Batteries Included:    Yes
Drive Wheel Size:    10"
Anti-Tip Size:    6"
Caster Size:    6"
Battery Pack Weight:    47.00 lbs.
Weight Without Batteries:    145.00 lbs.
Suspension:    No
Handles Thresholds of 2" or More:    Yes
Tire Type:    Foam Filled
Expedited Shipping Available:    No

Manuals & Literature

Approximate Shipping Dimensions and Weights

Product Weight: 198 lbs.
Box 1
Shipping Weight: 220.00 lbs.
Length: 33.00"
Width: 30.00"
Height: 22.00"

More Information on the Pronto M51

Pronto M51 Reviews

4.6 stars
80% of 5 reviewers recommend this!
Ease of Use
Meets Expectations

These reviews are from SpinLife customers who have purchased and used the Pronto M51.

Customer Reviews

4.0/ 5
Ease of Use
Meets Expectations
Very pleased with wheelchair.
Reviewer: b. from elgin, il

End User Desc: Person in 60's with M.S.

Strengths: Smooth motion and great turning radius. Also like the adjustable width of the armrests.

Weaknesses: Would like to suggest that Invacare offer a pan seating model on the Pronto as well as the office seating one. This would be useful when a gel cushion is needed.

Reviewed on 04/04/2014

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5.0/ 5
Ease of Use
Meets Expectations
Very good price for the product.
Reviewer: s. from milwaukee, wi

End User Desc: Severe RA 76 years old I needed a wheelchair with a short turning radius which was provided by the M 51 Pronto this is the second pronto that I had.

Strengths: Has an on board charger which is very convenient.

Weaknesses: Spincraft does not go through Medicare.

Reviewed on 07/30/2011

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5.0/ 5
Ease of Use
Meets Expectations
Great Machine
Reviewer: w. from hubert, nc

End User Desc: 74 years old with 3 back operations and extreme problems with walking and balance.

Strengths: Ease of controls and operation

Weaknesses: The "Horn" leaves a lot to be desired. For anyone that has a high frequency hearing loss, the Horn is totally useless......

Reviewed on 03/12/2011

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4.0/ 5
Ease of Use
Meets Expectations
He really like it so far.
Reviewer: n. from irons, mi (caregiver)

End User Desc: My husband has MS and his legs don't work so well so this will help him outside.Our home is small so he don't need it in ths house yet but we can go t

Strengths: not sure yet because haven't had the weather to use it out side yet. In the garage it's great for him to get around.


Reviewed on 01/19/2008

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5.0/ 5
Ease of Use
Meets Expectations
The chair squeaks loudly!
Reviewer: s. from montgomery, tx

End User Desc: Age 62, paraplegic from T4-T5,

Strengths: Speed; the lighted joystick that shows battery and speed

Weaknesses: It squeaks! My feet don't stay on the foot plate!

Reviewed on 11/29/2007

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More Information on the Pronto M51

Warranty Information for the Pronto M51

Base frame: 60 months

Seat frame: 60 months

Electronics: 12 months

Motor/gearbox: 18 months

Warranty does not include labor for repairs.

More Information on the Pronto M51

SpinLife Return Policy for the Pronto M51

This item is custom-made by the manufacturer to suit your specific needs and is therefore non-returnable.

If you have questions about this item please call a SpinLife Expert at 1-800-850-0335.

More Information on the Pronto M51

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