Heavy e-bikes and standard maintenance stands rarely get along, which is why the Cravot MastJack Mechanical Lift Repair Stand makes such a huge impression. Rated to hold bikes up to 165 lbs, this massive piece of shop gear is designed to take the back-breaking heavy lifting out of e-bike maintenance.
Here is an unboxing, assembly, and hands-on lifting test straight from the garage studio. Buy on Amazon.
Unboxing & Build Quality
Out of the box, the first thing that stands out is the sheer heft of the components. Between the main lift column and the thick metal base plate, the entire setup weighs a couple hundred pounds and feels built like a tank.
Key highlights from the unboxing include:
- Laser-cut solid metal base: Features clean cutouts with smooth, deburred edges and dedicated bolt mounting points.
- Integrated magnetic tool tray: Keeps fasteners and hand tools organized while working.
- Multiple mounting options: You can use the included freestanding steel base plate or bolt the main mast directly to a concrete shop floor using the included expansion anchor hardware.
- Lifting mechanism: Operates with an included manual hand crank or can be powered using a standard cordless drill.
Assembly: Fast and Straightforward
Despite the heavy weight of the steel, putting the MastJack together only takes a few straightforward steps:
- Mounting the Column to the Base: Secured the vertical column to the base plate using the six heavy-duty bolts (tightened down using a 16 mm wrench).
- Assembling the Arm & Clamp: Lined up the internal shaft of the clamp arm, secured it with a 5 mm socket head screw, and bolted the assembly onto the lift carriage using a 6 mm Allen key.
- Setting Up the Lift Drive: Slotted the manual hand crank into place, but quickly switched to a 3/8″ socket adapter on a cordless drill to let the machine do the hard work.
The Real-World Lift Test
To test the lift capacity, a Hemiway D5 equipped with an auxiliary 30 Ah battery—weighing around 100 lbs total—was clamped into place.
After securing the 360-degree rotating clamp to the seat post and tightening the claw angle, the cordless drill engaged the drive nut. The MastJack smoothly raised the 100 lb e-bike off the ground without slipping, creaking, or rocking.
Final Thoughts & Value
Priced around $600, the Cravot MastJack delivers heavy-duty lifting at a fraction of the cost of commercial electric shop lifts like those from Park Tool. For home mechanics maintaining fleet bikes or independent bike shops servicing heavy electric commuters and cargo bikes, having motorized mechanical lifting completely changes garage workflow.
