For track tubs you might want to consider going bespoke. Something like Kinlin TB 25 rims built on some Novatec track hubs (or BLB/Planet X ones) will cost you in the region of 200 pounds or a little more if you spec fancy mini bladed spokes.
The Kinlin are good for track, decent aerodynamic, pretty stiff and will take small 21 mm tubs
For track tubs you might want to consider going bespoke. Something like Kinlin TB 25 rims built on some Novatec track hubs (or BLB/Planet X ones) will cost you in the region of 200 pounds or a little more if you spec fancy mini bladed spokes.
The Kinlin are good for track, decent aerodynamic, pretty stiff and will take small 21 mm tubs