MERACH MR-T12B2 Folding Treadmill Review: Specs

The MERACH MR-T12B2 folding treadmill review below covers what MERACH states: a 0.8 to 12km/h speed range, a 15% auto incline, a 108 x 41.9cm belt and a 136kg user limit, with a folded size of 65 x 70 x 125cm. On that specification it suits walking and light jogging in a small home.

This review is based on MERACH's published page, not on any use of the machine. This site does not test products.

What does MERACH say the MR-T12B2 is?

MERACH's UK page describes a foldable treadmill with hydraulic folding that it calls 5-second folding and says can be done with one hand, a 5-layer running belt with six silicone shock-absorbing pillars, a remote control, a safety handle and built-in two-way wheels for moving it. It also lists a heart rate monitor.

The display is an LED panel showing time, calories, speed, distance and heart rate. MERACH states noise below 40 dB, which is a maker claim, and describes the machine as 90% pre-assembled.

MERACH MR-T12B2 specification

Is the MERACH MR-T12B2 suited to running?

The 12km/h top speed and 108 x 41.9cm belt point to walking and jogging, as reasoning from the specification, rather than fast running. Faster runners may reach the speed limit sooner, so compare other machines such as the Reebok GT40z, which lists 18km/h.

A 15% incline gives gradient variety without raising speed. The NHS describes brisk walking as moderate activity, and says a moderate activity becomes vigorous when you increase effort, so incline is one way a walking-pace machine can change intensity.

Who does the specification suit?

The 136kg limit is the highest among the treadmills compared in the best treadmill guide apart from the NordicTrack T Series 8's 147kg. The NHS recommends adults aged 19 to 64 do at least 150 minutes of moderate activity or 75 minutes of vigorous activity a week, and a machine like this can be used toward the moderate target indoors.

This section is reasoning from the stated figures, not a claim about how any person will find the machine.

Does the MERACH MR-T12B2 fold, and to what size?

Yes. MERACH lists hydraulic folding that it says takes 5 seconds, and states a folded size of 65 x 70 x 125cm. The stated 65 x 70cm folded footprint is about 0.45 square metres, which matches MERACH's 4.84 sq ft figure and suits a spare corner or a space behind a door, though the 125cm folded height needs checking against the storage spot.

The page does not publish the set-up size, so the room needed in use cannot be calculated from MERACH's figures. Ask the retailer for it before ordering and leave clearance behind the belt. See the folding treadmill guide and home gym storage ideas.

What warranty and returns does MERACH state?

MERACH states a 24-month warranty with "free replacement and support for 24 months", and 30-day returns for new, unused products within 30 days of delivery. The page ties returns to unused products, which matters for a machine you have assembled, so read the full terms. GOV.UK says customers can cancel an online order up to 14 days after delivery without giving a reason; check how the seller applies that to assembled machines.

MERACH lists free shipping, carriers including FedEx, UPS, DHL, DPD, TNT and GLS, and 3 to 7 business days in transit. Ask who handles returns if the item arrives damaged.

What do the cushioning, noise and connectivity claims mean?

MERACH lists a 5-layer running belt and six silicone shock-absorbing pillars, but gives no figures for impact reduction, so treat cushioning as a maker description. The noise claim of below 40 dB is likewise unqualified: the page does not say at what speed or load it was measured.

For connectivity, MERACH lists its own free app plus Kinomap, Zwift, Apple Health and Google Fit. The page does not say whether any of these services require a paid plan.

What should I ask the seller before ordering the MR-T12B2?

MERACH's page is clear on warranty, returns and folded size but silent on three figures. Ask for the set-up dimensions, so you know the floor area needed in use rather than only when folded. Ask for the machine weight, which matters for moving it on its built-in wheels, for carrying it into a flat and for floor loading. Ask for the motor rating, because the page gives none and the speed and weight limits are only as meaningful as the motor behind them.

Also confirm the plug and electrical supply for a UK socket, and whether the remote control and safety handle stop the belt, because the page lists them without describing how they work.

How do the speed and incline settings relate to the NHS intensity guidance?

MERACH's range starts at 0.8km/h and tops out at 12km/h, so the specification covers a gentle walk through to a jog. The NHS defines moderate activity by the talk test, where you can still talk but not sing, and vigorous activity as being able to say only a few words before pausing for breath. It says a moderate activity becomes vigorous when you increase effort, so the 15% incline is a way to raise effort without raising speed.

For beginners, the NHS Couch to 5K plan takes 9 weeks or longer, with 3 runs a week and rest days between, and says the runs can be done on a treadmill. Week 1 starts with 1-minute runs followed by 1 minute 30 seconds of walking. This site gives no training advice beyond that published plan; ask a qualified professional about pace and incline.

What to check before buying

• Missing figures. The motor rating, set-up size and net weight are not given. The weight matters because MERACH says the machine has built-in wheels for moving it, and the set-up size matters for the room. Ask the seller before ordering.
• Delivery and returns. Check the route into the building, because the page gives no machine weight.
• Safety key. The page lists a safety handle and remote control but no conventional safety key; read the manual for how the belt stops.
• Noise. The below 40 dB figure is the maker's claim; see the noise guide.
• Safety. Follow the manual. The NHS Couch to 5K page advises seeing a GP before starting if you have health concerns, and suggests supportive running shoes.

Who should skip the MERACH MR-T12B2?

Runners who expect to train above 12km/h should skip it, since that is the published ceiling. Buyers who need a stated set-up size, motor rating or machine weight before ordering should get those from the seller first. If you want a bike instead of a belt, read treadmill vs exercise bike.

How does it compare on paper with the Reebok?

Against the Reebok GT40z, the MERACH gives up top speed (12km/h against 18km/h) and belt length (108cm against 130cm), but states a higher user weight (136kg against 110kg), a folded size, a warranty length and returns terms on its page. Reasoning from those figures, it fits a buyer who prioritises storage and a stated warranty over running pace. See the Reebok GT40z review for the other side.

Price context

The indicative price is around £329.99 (checked Oct 2026). Retail prices move, so check the current figure on the retailer's page.