Chain ring or spider for Syncdrive Sport -solved

[Greatrex]

I have a 2021 Stance E+2 which has the Syncdrive sport motor. I would like to fit a larger chainring but I am struggling to find a ring or spider that fits the shaft. The Syncdrive sport has a 30mm diameter shaft whilst the PW series motors seems to have a 33 mm shaft. So the standard Yamaha/Giant spider such as the 1225-Praxis-902 won't fit. https://www.reveloutdoors.co.uk/Gia...OLT--1225-PRAXIS-902 /accessorydetail/3-46955

I suspect the two speed type - 122-9ap13-01v might fit https://www.ebike24.com/giant-e-bike-spider-chainring but I cant find anyone who will sell it or ship it to the UK.

Any ideas?

 

[Greatrex]

I managed to get the spider 122-9AP13-01V

Giant Spider for 10/11s AP13 A6061 T6 BLK w/o chainwheels, 122-9AP13-01V

Giant Spider for 10/11s AP13 A6061 T6 BLK w/o chainwheels, 122-9AP13-01V, FREE UK Delivery, Price: £36.99. Spider for 10/11s AP13 A6061 T6 BLK w/o chainwh

www.giantbikespares.com

This is two speed spider but the outer hole set are on the same q-factor as the original chain ring and then lets you fit any 104mm BCD chainring. For up to about a 42T chainring it will probably work without any further mods but I went for a 44T and this just grazed the chainstay so I needed a 1mm packer underneath the spider. The chainguide needed lengthening and I also put it on slightly longer standoffs but the standard 122 link chain fits fine.

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