Used Functional Trainers

Cable ratio, stack weight and what the numbers mean

The first thing to establish is the cable ratio, because it determines what the weight stack actually feels like. Many commercial functional trainers use a 2:1 arrangement, where selecting 100kg on the stack delivers roughly 50kg at the handle. Others run 1:1. Neither is better, but they are not comparable, and a buyer expecting 1:1 will find a 2:1 machine surprisingly light.

Stack weight follows from that. A pair of stacks around 80 to 100kg each on a 2:1 machine gives a usable range for the majority of members while still allowing precise small increments for rehab and accessory work. If you train strong athletes on cable movements, check the maximum resistance at the handle rather than the number on the shroud.

Cable travel and pulley adjustment range determine what the machine can do. Long cable travel allows full-range movements and rope work from a low position; a generous number of pulley positions makes it genuinely adjustable rather than a crossover with three settings. Count the positions on the carriage and check the travel at the top and bottom of the range.

Then consider integrated features. Many commercial functional trainers include a chin-up bar, plate storage or a bench, and some come as a half-rack hybrid. Extras are useful in a space-constrained studio but they also add height and width, so confirm they suit the room rather than assuming more is better.

Cables, pulleys and carriages — the parts that wear

Cables are the primary consumable and the main risk in a used purchase. Run the whole length of each cable through your fingers where you can reach it, feeling for broken strands, kinks, flat spots and rust. Any fraying at all means the cable needs replacing, and a snapped cable under load is both a safety incident and an out-of-service machine.

Look at the swaged ends and stops, since that is where cables fail most often. Check the crimped fittings for distortion and the cable stops for wear, and pull each handle through its full travel watching the cable enter and leave every pulley cleanly rather than rubbing on a shroud or a frame edge.

Inspect the pulleys themselves. Spin each one and listen for bearing noise, then look into the groove for scoring, a widened channel or a lip that has worn to a sharp edge. A worn pulley groove will chew through a brand-new cable, so replacing cables without replacing bad pulleys is a false economy that people make regularly.

Finally, test the adjustable carriages. Slide each one over the full range of positions and check it moves smoothly and locks positively at every setting. Sticky or notchy travel usually means worn liners or scored guide rods, both fixable but both jobs. Also confirm the selector pins and stack pins are present and undamaged, as replacements are model-specific.

Ceiling height, footprint and fixings

Ceiling height is the constraint that stops more functional trainer purchases than any other. Commercial units commonly stand somewhere between 2.1 and 2.3m tall, and if there is a chin-up bar the user needs clearance above that. Measure to the lowest obstruction — pipework, lighting and ducting all count — and get the exact overall height of the specific model before you buy.

The frame footprint is typically 1.5 to 2.2m wide and around 1.2m deep, but the usable footprint is much larger. Cable work needs clear space in front and to the sides so a member can step back into a row or a press without meeting a bench, and crossover movements need genuine width. Allow at least a couple of metres of clear working space in front.

Check whether the machine is designed to be bolted down or stands freestanding. Many commercial functional trainers are stable enough freestanding, particularly with loaded stacks, but some specify fixing to the floor or wall and any chin-up bar use makes that more important. Confirm the requirement and whether your floor allows it.

Plan the route in properly. Functional trainers are tall, wide and heavy — often 300kg or more with the stacks — and they usually come apart into a frame, stacks and shrouds for transit. Ask what dismantles and whether the fixings and shroud hardware are complete, because reassembling one of these without the missing bolts is a genuine problem.

Maintenance, cable replacement and running costs

Functional trainer maintenance is mostly inspection. Check the cables monthly along their accessible length, look at the pulleys and swages, wipe the guide rods and apply the manufacturer-specified lubricant, and confirm the carriages lock properly. Ten minutes a month will prevent most failures.

Plan cable replacement as an expected cost rather than a fault. Cables have a finite life under commercial use and replacing them on schedule is cheaper and safer than replacing them after a failure. Get a price for a full cable set for the model before you buy, and check availability for that specific generation.

Keep the guide rods and pulley areas clean. Chalk dust and grit are the enemies here — they embed in liners and accelerate wear on both rods and cables. Facilities that allow chalk near a functional trainer should expect to service the carriages more often than those that do not.

Watch the upholstery and attachments too. Handles, ropes, bars and straps wear out through use and disappear through borrowing, and their absence quietly reduces what the machine can do. A small labelled storage rack next to the trainer solves a surprising amount of that.

Attachments and what should come with the machine

Attachments are what make a functional trainer functional, and they are frequently missing on used machines. A usable set includes single handles, a rope, a straight or lat bar, an ankle strap and ideally a short bar for rows and presses. Without them the machine is a frame with two cables.

Confirm exactly what is included in writing through Equipd messages before you pay. "With attachments" can mean two handles or a full set, and the difference is real money. Photograph or list the items agreed so there is no ambiguity at handover.

Check attachment compatibility with the cable ends. Commercial machines generally use standard carabiners or clips, but some manufacturers use proprietary fittings, and a machine with proprietary ends and no attachments is more expensive to bring into service than the price suggests.

Consider buying a small stock of good aftermarket attachments regardless. They are inexpensive, they wear out, and having spares means the machine is never limited by a missing rope. It also lets you standardise attachments across several machines if you own more than one.

Brand differences and parts availability

Life Fitness dual adjustable pulleys are among the most common commercial functional trainers in the UK, which makes them a straightforward used buy: familiar to engineers, well supplied with cables and pulleys and available in enough numbers to compare examples.

Technogym machines including its cable-based functional systems are beautifully engineered and hold value strongly, with parts more often supplied through official channels. Precor and Matrix both offer solid, serviceable functional trainers that represent good value used, with reasonable parts routes on recent generations.

Keiser takes a different approach with pneumatic resistance rather than a weight stack, which gives very light starting resistance and fast changes, making it popular for rehab and speed work. It is a different machine with different maintenance — an air system rather than cables and stacks — so evaluate it on its own terms.

Whatever the brand, the decisive question is whether cables, pulleys, liners and pins are still available for that exact generation. Frames last decades; consumables are what keep the machine in service, so a five-minute call to a parts supplier should be part of every purchase decision.

Refurbished or as-seen, transport and inspection

Refurbished functional trainers should arrive with a new cable set, replaced pulleys where worn, serviced carriages, renewed upholstery and a full attachment set. That is exactly the work most buyers cannot easily do themselves, so the premium is often justified. Ask for the itemised list and keep it in Equipd messages.

As-seen machines suit buyers who can price and carry out cable work. A structurally excellent trainer with tired cables and a couple of worn pulleys is often the best value on the page, provided you have quoted the parts and labour honestly before offering.

Inspect in person given the value and the hidden wear. Work the machine properly: every pulley position on both sides, full cable travel, all stack increments, chin-up bar security if fitted, and listen throughout. Photograph the cables at the swages, the pulley grooves and the guide rods, along with the serial plate.

For transport, fulfilment is agreed directly between buyer and seller on Equipd — collection, seller delivery or a buyer-arranged courier. These machines are heavy and tall, and the stacks are usually removed for transit, so specialist movers and a clear plan for who dismantles and reassembles are worth arranging in advance.

On arrival, reassemble, load the stacks and test every position before confirming handover. Confirmation is what starts the Buyer Protection window on eligible purchases, so it belongs after you have run the machine, not while a van is still being unloaded.