Flyon Chainring

[Exrm193]

Chainrings. Has anybody replaced the chainring on a Flyon motor??Are any special tools required??
I have a new chainring to go on...DIY or a dealer job??
Cheers

 

[Sidepod]

There is a special tool but it cost around £70.
it may be possible with a large socket but I’ve not tried.
The torque is only 30Nm so you will probably get it of by using a centre punch and hammer. Left hand thread don’t forget.
Does the new chain ring come with a new nut?
If not it might be an idea to get a new one as it also contains an seal.

If you live anywhere near Oxfordshire then you’re welcome to borrow my socket.

Could be worth investing as it’s good to remove for cleaning.

 

[paulzx14]

There is a special tool but it cost around £70.
it may be possible with a large socket but I’ve not tried.
The torque is only 30Nm so you will probably get it of by using a centre punch and hammer. Left hand thread don’t forget.
Does the new chain ring come with a new nut?
If not it might be an idea to get a new one as it also contains an seal.

If you live anywhere near Oxfordshire then you’re welcome to borrow my socket.

Could be worth investing as it’s good to remove for cleaning.

Hi everyone,

Just thought I'd share this discovery I made somewhere on the web (it may even have been EMTB!).

You can remove the chain ring nut on the flyon using a normal 12 point 50mm socket.
This one on ebay is the exact fit...
(In fact I would suggest Haibike made it that shape for that reason, and some smart person lured us down a £70 "special tool" route just to make a few £'s!!!)

US PRO Tools 3/4" dr 12pt 50mm Socket Ideal for Hub Nut Ford Transit x 1 3451 | eBay​

(£10.20 delivered - as of June 2023)

Just taken mine off, dead easy - it was only hand tight so no need for ratchets, 3/4" drives, etc.

As others have said make sure you turn CLOCKWISE to remove the nut (it's a LH thread).
And don't overtighten it putting it back on, mines just a 'good' hand tight fit - anything too heavy handed and you risk stripping the fine threads on the nut.

Hope that helps someone.