It’s actually brilliant in my opinion! This one is very interesting because it doesn’t attach to the TCU. Basically looks like it’s a simple 2:1 divider that intercepts the speed sensor pulse and outputs precisely .5 of the rev counter sensor , and of course your bike also displays 1/2 speed. I might try this approach under warranty because it’s completely invisible to the TCU I think. Simple and very robust approach as long as the output pulse is appropriately shaped. You could probably easily do the same thing without a lot of efforts but for €149 it’s not worth the hassle perhaps. Effectively gives a 50kmh limit. Likewise with just a few components you could wire up a 4:1. I can’t imagine myself going 100kmh or 62 mph on a bike though!I certainly can’t vouch for it but I did find this one. https://www.ebikespartsandaccessori...SL-Ebike-Tuning-for-CREO-LEVO-TURBO-LEVO-VADO
Pardon the mess it’s a work in progress:Guys,
I feel you don't grab the whole idea
Any "true speed" chip has to be connected to the motor. The connectors are in the front of the motor. After the motor has been removed from the bike, you just connect PearTune or any other chip (nothing connects to TCU!).
There's simply no space inside the bike to store the chip in. That is, the only space can be found in the top tube below the TCU. Now fancy routing long cables through the frame...
I need to buy it yetStefan, congratulations on the new bike!
"Hitching a ride" is sometimes called "hitchhiking", coming from an old (and no longer safe) practice of standing by the side of the road with one's thumb pointing up, hoping for someone to stop and give you a ride. So in general, it means getting a free ride from someone, or in this case tapping into a wire harness to get the electric current that's already there.Pardon me? Your everyday English (hitch a ride) has defeated a PoleElaborate please or explain the joke!
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Best part that you didn't mention...Thank you Doug!
News: PearTune is made in the Czech Republic. I've got in direct contact with them. Something funny first:
The business belongs to the family of Hruška (the female form is Ms Hruškova). Hruška just means Pear in Czech
They have confirmed PearTune 3.0 would fit Vado SL easily. It is necessary to remove the motor first (it does not look hard for Vado SL). Then, you remove the TCU from the top tube. You place the chip below the TCU, and -- important! -- you route the cable forward of the bike first. Then, the cable turns downwards and backwards through the bottom tube, along existing cable bundle to be attached to the motor/speed sensor connectors. It looks doable.
The Normal version requires the display present to turn the derestrictor on or off. The Still On version is a permanent -- stealthy -- derestrictor.
Stefan thanks. This is quite interesting. I had a look at another website today that sells it. They had a diagram for a Levo (below). Apparently the normal version uses the “Walk” button to turn on and off. I don’t even know if my new Vado SL has this button, if not it’s the always on version of the chip. They also had another picture of the motor internals I thought was interesting.The Normal version requires the display present to turn the derestrictor on or off. The Still On version is a permanent -- stealthy -- derestrictor.
@VoltMan99: Mystery solved! Vado SL (any version) has the Walk button on the remote! Therefore, the Normal version of PearTune would work. I'm afraid the Walk capability might be lost in the process (I will ask Ms Hruskova about that).Apparently the normal version uses the “Walk” button to turn on and off.
Stefan- you’ve made my day. Thanks for the info! And congratulations on getting your new bike! Regardless the PearTune, just discovering my bike will have a walk mode is fantastic. Hopefully some twisted Japanese regulation won’t get in the way of having that. I didn’t realize the value of that feature until now. There’s quite a few places where we have to walk a bike up a long steep bike ramp adjacent to stair steps to cross a river levee (Google says “grobla“ in Polish). Even the fittest roadies with the lightest bikes have a bit of a struggle. Quite a few bicycle parking lots have these ramps too. I’m excited by this!@VoltMan99: Mystery solved! Vado SL (any version) has the Walk button on the remote! Therefore, the Normal version of PearTune would work. I'm afraid the Walk capability might be lost in the process (I will ask Ms Hruskova about that).
There is another thing: I have bad legs. I can only hit 25 km/h on the SL with significant assistance, which is bad for batteries. So I wonder if I would derestrict my Turbo Snail at all (the bike bought and ridden today!)
There is an interesting button on the remote, the "S-Button" (where S is the Spesh logo). It gets you in Turbo mode with a single push. And, the Walk mode works perfectly, far better than it does on my full power Vado.
I think I would just go for the hardwired “Still On” option, and have both. But not until my warranty is finished.I think I would rather have walk mode than extra speed.. But the Specialized button is interesting...like the Apple button.
Looking forwards to your report Stefan !!So I ordered the chip.