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seem like a part of the speed reduction is caused by the front wheel where debris are stuck betwheen the wheel and its mounting piece...but this is seem really tricky to unmount:/ any trick?
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Sounds like the sticky front wheel could be part of your steering problem too.
If you search the zipzaps forums here, there are directions explaining how to pull out the front wheel pins/axles. It seems to be a process you can only do once or twice because the axle is threaded in a way where if you remove it, you end up opening the fitting up more each time you pull the axle.
I use a little graphite lube on the drive gears. It is actually a powder not liquid. A little messy, but better than using an oil product that will attract dust and hairs.
