I guess I'd also need muscle to hold the wheel down too, or is there a trick to that? Note - I'm a 60kg weakling.
There's a trick. Wedge the wheel into the corner of floor and wall, and arrange things such that the push you're applying to the chain whip handle is directed towards the apex of that corner. That way, the reaction to your puny efforts is wedging the wheel further into the corner, adding to the tyre friction which is stopping it from rotating.
Also, buy a chain whip - you're going to need it when you want to take those shitty splined sprocket carriers off your hub threads.
There's a trick. Wedge the wheel into the corner of floor and wall, and arrange things such that the push you're applying to the chain whip handle is directed towards the apex of that corner. That way, the reaction to your puny efforts is wedging the wheel further into the corner, adding to the tyre friction which is stopping it from rotating.
Also, buy a chain whip - you're going to need it when you want to take those shitty splined sprocket carriers off your hub threads.