My front wheel is Fireblade-fitment, which with Honda's standardisation means I've got a choice of a few different discs. Usually I use SP2 320mm discs but they're a wee bit overkill frankly, very very strong. So, I was thinking off going down to CBR600RR 310s when I found out that the 954 Blade had a 330mm disc- found one cheap on Ebay and decided to see what happens if I on;y use one...
Obviously the caliper and mounts are all still there for the RHS disc, just with nothing to bite on. So it does look a bit silly. So first question folks, does it just look daft? Try and imagine it with no caliper etc.
The weight saving is quite solid- discs and caliper together is nearly 2 kilos, even with just the disc removed it's noticable on steering. The weight's moved out a little on the one larger disc though, and it's around 100 grams heavier.
Performance... Meh. It's very damp here so I can't exactly test it properly, but it has next to no initial bite. I quite like that, but there's a big loss of power. I actually expected a loss of feel, with the 18mm master cylinder now pushing half as much fluid, but it's not worked out like that. What remains to be seen is how much real power it loses- I've tried some hard stops on shellgrip, and it takes a lot more effort but it does stop pretty sharpish. If I could combine this gradual initial bite with more power as I brake harder it'd be lovely...
Anyway, just thought I would post this up as a work in progress, the weight reduction is pretty nice but I'm not sure it's worth it, I need to decide if I'm going to work with it- maybe with a different caliper or stronger pads- or if the looks are just too offputting
