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CycleOps The Silencer Direct Drive Mag Trainer

Sale $593.99 $659.99 10% off

Item # COP001A

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Item # COP001A


One of the annoying things about indoor trainers is the noise they make. The Cycleops The Silencer Direct Drive Mag Trainer brings that noise level way down, so you don’t upset the neighbors or interrupt the missus while she tries to watch her stories.

The Silencer eliminates the need for a rear wheel. Your rear axle attaches directly to the large, weighted flywheel. It’s easy to set up: just attach a cassette to the trainer, pull off your rear wheel, and attach the rear dropouts. What all this means is that your don’t need to buy trainer tires. Also, the bike will sit at the correct height when it’s on the trainer.

The frame of the trainer is wide and has adjustable leveling knobs. You can stand and pedal without pulling your rear wheel. The trainer, while portable, weighs 39 pounds, so it’s a handful to get around.

The Silencer comes with five magnetic resistance settings. They are adjusted through a handlebar-mounted shifter, so you can simulate real world conditions. The direct drive system, coupled with the magnetic flywheel, keep your training rides realistic and whisper-quiet.

  • Direct mount system
  • Easy setup
  • No training tires needed
  • Wide stance
  • Leveling knobs
  • Five resistance settings

Tech Specs

[frame] alloy
cassette, 5-position magnetic
Recommended Use:
stealthy indoor training
Manufacturer Warranty:

Reviews & Community


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No ability to track speed/mileage with this, right? Thanks!

No, you would need a computer that will work on a rear wheel with it.

Not Silent, but a Major Improvement

  • Familiarity: I've used it several times

When I watch TV in an active house (two kids), I keep the volume at about 20.

When I watch TV in a quiet house (kids asleep), I keep the volume at about 8.

When I watch TV on this trainer, I keep the volume at about 45. And when I do, my kids and wife remain asleep.

It ain't silent. But it ain't loud either. A massive improvement over my past trainers. Recommended.



-- Bike at "normal height" is a massive plus.

-- Stability is great, and it does feel more like "real" riding.


-- Heavy. Worried that my kids will try to use the bike as a handle for moving the trainer and it will break the bike.

-- No handle for moving the trainer. Kinduvapain.

-- Setup isn't terrible, but you need a chain whip and a cassete wrench.

How Quiet is It?

  • Familiarity: I've used it several times

This seems to be the main question about this unit, and with good reason! It is called the Silencer after all. So I'€™ll get right to the point. It isn'€™t as silent as owl wings or falling leaves, but it is quitter than any other indoor trainer I have used. It is quite enough that I can ride it while the kids watch cartoons in the same room without having to crank the volume on the TV. It is quiet enough that I can ride it while other people sleep in the house. It is quieter than the dishwasher. I attribute this to the magnetic resistance unit, and to the direct drive. A lot of the noise on tire-driven units comes from the howl of the tire as is spins against the trainer.

There are other things to like about the silencer as well. This is a big, heavy piece of equipment, with most of the mass in a wide and solid base. It also does not require a riser block. T”the front tire sits on the floor. No acrobatics are required to get on and off. Sitting on a bike in the silencer feels much more stable than other trainers, practically comparable to a stationary bike. Other trainers I'€™ve used have a bit of a tippy feel. The flipside of all this stability is portability of course. This probably is not the ideal trainer to take to the races for warming up.

How Quiet is It?


Setup was not difficult the trainer is in two pieces in the box, and is assembled with 3 bolts. And 11 speed cassette installed without the included spacer. The 10mm rear axle comes with several spacers to accommodate road or mountain bikes. I had to experiment a little bit to get my 135mm disc-brake road bike lined up correctly, but it runs and shifts perfectly in the trainer.

Resistance is controlled with a cable actuated remote that runs to the handlebar. For myself, I have found that the best way to control resistance is by choosing a pretty high gear and leaving it there, using only the trainer’s lever to make it harder or easier. The hardes setting n the biggest gear on the bike is very stiff. There’s enough resistance there for everyone but the most powerful riders. Those watt monsters will still probably want a fluid resistance unit. For us mortals, the Mafnetic resistance is more than enough.

Trainer time may not be anyone’s favorite aspect of cycling, but with the Silencer, Cycleops has produced a winner!

If you would like ot order or have questions about the silencer, please get in touch. My email is and my extension is 4076.

Avg. ride time: 1h 51m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

can you get this with a campy hub?

Hi PK,

The CycleOps Silencer is only available with a Shimano/SRAM 9/10/11 freehub body. That's the bad news. The good news is that Lennard Zinn at VeloNews and others have tested compatibility between Shimano, SRAM, and Campagnolo 11-speed cassettes, and have found that they are almost perfectly interchangeable. So you can put an affordable Shimano or SRAM 11-speed cassette on this trainer and use it with your Campy drivetrain. Save your titanium Super-record cassette for the road!