Stac Zero Halcyon Support (Lack of)

Stevers

New Member
I get only really well with the Halcyon which suits my purpose nicely, not least because it’s compatible with my wife’s 6 speed tourer, and both of my retro 7 speed road bikes, and I even rather like its ‘industrial’ design. In the two years that I have owned it there have been three failures. Just outside the warranty period (October 2019) it bricked itself during a firmware update and Stac Zero/4iiii were fantastic with their support and managed to help me load the 2006 beta firmware which is excellent and gave me up to 10% resistance on hills. Full marks 10/10 A+++ etc.

Then three weeks ago (August 2020) one of the linear actuators that move the magnets seized in a fairly open position and made the unit unusable with perhaps 200W at 130 cadence. I contacted Stac Zero Support only to get an e-mail to say that support was withdrawn and that the Stac support address wasn’t monitored. I then contacted 4iiii who just said that the promised Fliiiight upgrade package for the Stac Zero still isn’t available. Anyway those nice people at Stac had put the Actuonix OEM part number on the actuator and being in the UK I sourced one from RS Components for delivery next day (approx. £100). These can be sourced over the pond for less, but if the UK post office gets their hands on it and charges an admin fee for import duty all bets are off on how much that would end up costing! One of the mounting eyes was thicker than the original, so I couldn’t use the original circlipped pin, but the supplied bolt and Nyloc nut worked well, and the Halcyon was up and running again. Three weeks later I’m on the trainer thinking how well it was working, when I feel the resistance randomly varying again, and bingo the other actuator fails - this time close to the wheel so still able to offer meaningful resistance (240W at 90 cadence).

I find it odd that these actuators should fail within three weeks of each other (after two years and 3,500 miles) so have contacted support at Actuonix to see what they think. Should I hear from Actuonix I will record their response here. It seems those of us with Halcyons have been abandoned by 4iiii, and hopefully recording my experience here will prove helpful to others.

Steve
 
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Stevers

New Member
Have had a reply from Actuonix who have kindly offered me favourable one off terms on up to nine actuators. They are not familiar with the application, but have stated that the duty cycle on the PQ12 motor is 125 hours. It's hard to estimate the hours ridden before failure, but I reckon they comfortably exceeded the duty cycle at over 200 hours. My son has also just told me that all linear actuators have a bit of a reputation as a consumable. Another reason to ride on the road when you can!

Steve
 
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