I'll be interested to see if you keep the Arrow head pipe on. I'm not sure the bigger inner diameter will be an improvement. I have read other posts by people that put on a complete with a larger headpipe and couldn't get rid of the flat spots in the power band which came with the pipe. Let us know about fuel economy changes as well.
Having larger diameter header allows for more air flow, less restriction on motor but you must add EFI addon box to increase fuel to get the gains from the pipe.
32 vs 36mm is 1.25 or so times larger in area. My theory is that this would lower the sound output a bit, do you have a sound dB meter to verify that theory??
How are the bends? the same as stock? less bent? Trying to think if this would have enough of an appreciable impact on performance to make it worthwhile.
If it is enough quieter at the same distance that may be worthwhile, I do not like loud pipes (I think they only cause hearing loss because I know I cant hear em when in my truck until the bike is right next to me and I do not have the radio as loud as many others on the road).
I'd really like to hear/see what impact this header pipe has on performance/economy. I ordered Arrow's slip-on and am waiting to try it out before I decide on the header. I know that if I go slip-on AND header, I'd need new fuel/ignition management. However, with my BikeMaster air filter and the slip-on combined, I might need it anyway. In hitch case, I'll definitely be getting the header pipe, as well.
While the overall braking of the CRB250 is acceptable I am quite disappointed with the lack of feel (wooden block comes to mind). I will likely try SS lines but since I like doing things just to do them I thought about installing the ABS caliper, with it's three pistons, on the stock master...
i haven't tested my bike yet, just for daily use no more than 65km/h (40mph). But i want to know how fast can you ride CBR250 on the road with standard specification?
i just wanted to know, cause is the result is different from one rider to another. thanks in advance.:)
I would like to know if anyone has deleted the wiring for the abs from a cbr250. The reason I ask is I have a hybrid , cbr motor in a 125 frame, running on stock cbr250 wiring loom when I have test risen it it does not seem to want to accelerate! I was thinking it may be to do with the abs and...
At 5500 miles, I'm thinking about new tires. I think the IRC Road Winner RX-01's have been superb, but I don't want to overlook other tires that might be as good or better.
I'm under the impression that the CBR250R should be fitted only with bias ply tires. This relatively new video from...
Rear shock spring too stiff... is it just my butt?
I weigh 174 pounds, and I found the number two spring setting to be cruely harsh, and the softest setting is only marginally acceptable to me. A softer-yet setting would be nice, and it's hard to imagine riders closer to a hundred pounds don't...
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