Help! Which PAS sensor should I choose?

[mt247]

So I'm going to purchase this geared hub set: https://www.aliexpress.com/item/4000838391101.html?spm=a2g0o.cart.0.0.21bb3c00Egip86&mp=1
But not quite sure what pas sensor should I choose. Any advice would be appreciated.



PAS sensor options.



bike1


bike 2

 

[vfr400]

It depends which bottom bracket you have. You didn't say and your photos don't show.

 

[mt247]

It depends which bottom bracket you have. You didn't say and your photos don't show.

Yeah I don't have no idea what bottom bracket I have. My bike is this: https://whitebikes.com/ax-290-ff-20/b/2461/

• CRANKSET - Prowheel, 38T
• Shimano CS-HG31-8, 11-34T

More pictures:

 

[vfr400]

Photos still don't show the diameter of the spindle. Have a look from underneath. Is it a spline or a square taper?

 

[mt247]

Photos still don't show the diameter of the spindle. Have a look from underneath. Is it a spline or a square taper?

No idea about the taper but here are even more pictures from the bottom:

 

[vfr400]

It's square taper. There's not a lot of room on the left side. Can you show the gap between the chainwheel and the BB on the drive side.

 

[mt247]

It's square taper. There's not a lot of room on the left side. Can you show the gap between the chainwheel and the BB on the drive side.

Yeah sure, here are some more pictures:

 

[vfr400]

It's not looking good for fitting a standard one in the standard way. There's not enough room on the drive side and there's some sort of weird sleeve over your BB spindle that's probably just to keep the dirt out.

If it were my bike, I'd go for no. 2. You will need a lock-ring and you'll have to unwind the bearing cap a couple of turns to get enough thread to hold the lock-ring. Also, you'll probably have to grind/file a couple of mm off the inside of the pedal arm boss to make room for the magnet disc.

Bottom Bracket Cup Lockring / Locking ring 24TPI | eBay

Find many great new & used options and get the best deals for Bottom Bracket Cup Lockring / Locking ring 24TPI at the best online prices at eBay! Free delivery for many products.

www.ebay.co.uk

 

[mt247]

It's not looking good for fitting a standard one in the standard way. There's not enough room on the drive side and there's some sort of weird sleeve over your BB spindle that's probably just to keep the dirt out.

If it were my bike, I'd go for no. 2. You will need a lock-ring and you'll have to unwind the bearing cap a couple of turns to get enough thread to hold the lock-ring. Also, you'll probably have to grind/file a couple of mm off the inside of the pedal arm boss to make room for the magnet disc.

Bottom Bracket Cup Lockring / Locking ring 24TPI | eBay

Find many great new & used options and get the best deals for Bottom Bracket Cup Lockring / Locking ring 24TPI at the best online prices at eBay! Free delivery for many products.

www.ebay.co.uk

How about that last d12-l option? Seems like you don't have to remove crank for it:

Looks like it doesn't need that much space.