Haibike Flyon Chainring socket

[Petey]

Hi All, removed chainring from my Flyon today using a 50mm multi-hex socket that cost me £10 on ebay good quality socket and worked perfectly without damaging the bike. I had measured this beforehand. This was 3/4" drive so you may need an adaptor if you don't have a suitable bar wrench tool. The original haibike socket is £80 so quite a saving. Hope this helps someone.

 

[paulzx14]

Hi All, removed chainring from my Flyon today using a 50mm multi-hex socket that cost me £10 on ebay good quality socket and worked perfectly without damaging the bike. I had measured this beforehand. This was 3/4" drive so you may need an adaptor if you don't have a suitable bar wrench tool. The original haibike socket is £80 so quite a saving. Hope this helps someone.

I can confirm this works a treat!.
Mine was only hand tight so no need for 3/4" drive etc.

I got the socket from ....

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

Find many great new & used options and get the best deals for US PRO Tools 3/4" dr 12pt 50mm Socket Ideal for Hub Nut Ford Transit x 1 3451 at the best online prices at eBay! Free delivery for many products.

www.ebay.co.uk

£10.20 delivered.

I'm starting to think the "special tool" thing was some opportunist marketing.
Haibike probably made the nut a standard 50mm socket size!