Tye is correct, and when he says "factory", that refers to the race bikes.
Here is a photo of a set of 34/30mm heads--not from an actual 916SP, but the same size used on the SP's. Just measure as seen here:
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2001 Ducati 996 R
1991 Kawasaki ZX-7R K1 homologation
2001 Ducati 996 track bike
1971 Honda CB450 cafe racer
1989 Honda NSR250 MC18/derestricted
2001 Derbi GPR 75
1998 Ducati 916 SPS #909(sold)
2000 Ducati 996 SPS #1134(sold)
1999 Laverda Formula 750S(sold)
2001 Ducati 996 Monoposto(sold)
1998 Ducati 748 (sold)
1999 Ducati Monster 900 (sold)
1995 Ducati 916 (sold)
1997 Suzuki TL1000s (sold)
1994 Honda VFR750 (sold)
1988 Yamaha FZR1000 (sold)
1990 Suzuki Katana 600 (sold)
1986 Yamaha Radian 600 (sold)
1985 Kawasaki GPz750 (sold)
1983 Suzuki GS450E (sold)
Last edited by nine16; Feb 5th, 2010 at 1:58 pm.
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