Mongoose IBOC

[kingoffootball]

https://www.ebay.co.uk/itm/403713972055

 

[Markybeau]

I wouldn't have said that's a 21inch frame. Looks more like an 18. Could well be wrong though

 

[KermitGKona88]

They also have a gate sized Marin listed as frame size small, so maybe not too handy with a tape measure...

 

[trailwright]

I wouldn't have said that's a 21inch frame. Looks more like an 18. Could well be wrong though

I think you're being generous at that even. 16" I'd say.