Lekkie Bling Ring 42t - Anyone know the chainline on a 68mm BB?

[Manc44]

Does anyone know what the chainline ends up at if using a Lekkie 42t Bling Ring on a 68mm bottom bracket, on the Bafang BBS02?

All I can find is stuff like "9mm offset" but that's meaningless to me, I just want to know what the chainline is!

The Lekkie website says:
"Offset: 9mm – see User Manual for more information (stock bafang 5.4mm)"

If the stock chainring creates a 50mm chainline (according to the BBS02 schematic) and the Lekkie chainring has 3.6mm more offset than that, the Lekkie chainline ends up at 46.5mm right?

I think on my setup that would be literally perfect. I can always put 1mm washers on the bolts between the motor body and chainring to end up with it at 47.5mm (what it probably should be on my MTB).

Cheers.

 

[wheeliepete]

I didn't know you could measure a chainline, so I don't think I can be of much help, but offset is dish on the chainwheel to bring it inboard from the edge of the motor housing, so I think your calcs. are correct. From my experience, a Bling Ring will work well with most applications.

 

[Manc44]

I didn't know you could measure a chainline, so I don't think I can be of much help, but offset is dish on the chainwheel to bring it inboard from the edge of the motor housing, so I think your calcs. are correct. From my experience, a Bling Ring will work well with most applications.

Cheers, yes I think I worked out I might need a 2mm spacer with the Lekkie and perhaps five 1mm washers to space it to a maximum of 3mm in total but it won't need more than that... plus also then it needs 5 bolts that are 3mm longer. Safety first!

 

[Kinninvie]

You need the chainring to clear the chainstay too.
On my Cannondale Trail it just touched the chainstay but a quick tap with a hammer sorted it as we were talking les than a mm.
What bike are you putting it on?