[crashtoy2026]

I've misplaced my service book and i need outer tube measurement for a 03 crf450 and 06 crf450. They are both stock.

[Asmith]

Minimum 323ml - Maximum 419ml.

[crashtoy2026]

for both years

[Asmith]

for both years

That was for the 2003.

The 2006 is similar, Min 311ml - Max 407ml.

I believe standard is 375ml, but it is a "suit to style" measurement.

Too much makes them harsh, too little makes them bottom out easily.
Start with 375 and tune from there.

[crashtoy2026]

thank you

[crashtoy2026]

hey AS,

could i get the inner chamber measurements for the 03' and 06' please. i should've asked earlier, sorry.

thanks

[Asmith]

hey AS,

could i get the inner chamber measurements for the 03' and 06' please. i should've asked earlier, sorry.

thanks

2003 - 195ml

2006 - 192ml

I usually use 200ml and bleed the excess off.