For a 2min sprint on static rollers weight , aerodynamics and comfort are not needed.
You need a crank the correct length for the rider. This is the starting point for saddle and bar positioning. You can experiment with saddle fore-aft and height. Bar reach and height should be correct to maximise upper body contribution. "Look" made a solid adjustable stem.
A frame and transmission stiff enough to have zero flex.
The transmission and rear wheel weight may have an impact but if the roller resistance is the deciding factor, then not.
On singlespeed systems, you want larger rings and sprockets for better transmission efficiency.
If you have big rings you need thick metal to avoid flex which may mean a 1/8" track style chain.
A solid pedal to shoe connection with a very stiff midsole. Track riders are more concerned with sold connection than with a safe release mechanism so straps are still in use.