The 1997 Honda CBR900RR didn't come with a chainguard, so I thought I'd 3d model one, but I wasn't sure what they looked like, so I did a bit of research.
Honda used the same chainguard on all the mid-late 90s CBRs, so if I can find a CBR600 F2 or F3 or a CBR900, they'd all fit. If I can't find one I'll cabricate one.
Honda CASE, DRIVE CHAIN (CBR chainguard)
Part # 40510-KY2-700
This Honda 40510-KY2-700 CASE, DRIVE CHAIN (A) fits the following models and components:
Honda Motorcycle 1997 CBR900RR A Swingarm
Honda Motorcycle 1997 CBR900RR AC Swingarm
Honda Motorcycle 1996 CBR600SJR AC Swingarm
Honda Motorcycle 1996 CBR600SJR A Swingarm
Honda Motorcycle 1999 CBR900RR A Swingarm
Honda Motorcycle 1996 CBR600F3 AC - SUPER SPORT Swingarm
Honda Motorcycle 1996 CBR600F3 A - SUPER SPORT Swingarm
Honda Motorcycle 1992 CBR600F2 AC - SUPER SPORT Swingarm
Honda Motorcycle 1998 CBR600F3 AC Swingarm
Honda Motorcycle 1998 CBR600F3 A Swingarm
Honda Motorcycle 1997 CBR600F3 AC Swingarm
Honda Motorcycle 1997 CBR600F3 A Swingarm
Honda Motorcycle 1995 CBR900RR A Swingarm
Honda Motorcycle 1995 CBR900RR AC Swingarm
Honda Motorcycle 1994 CBR600F2 A - SUPER SPORT Swingarm
Honda Motorcycle 1991 CBR600F2 AC - SUPER SPORT Swingarm
Honda Motorcycle 1999 CBR900RR AC Swingarm
Honda Motorcycle 1994 CBR600F2 AC - SUPER SPORT Swingarm
Honda Motorcycle 1991 CBR600F2 A - SUPER SPORT Swingarm
Honda Motorcycle 1993 CBR900RR A Swingarm
Honda Motorcycle 1993 CBR900RR AC Swingarm
Honda Motorcycle 1996 CBR900RR AC Swingarm
Honda Motorcycle 1996 CBR900RR A Swingarm
Honda Motorcycle 1995 CBR600F3 AC - SUPER SPORT Swingarm
Honda Motorcycle 1995 CBR600F3 A - SUPER SPORT Swingarm
Honda Motorcycle 1994 CBR900RR AC Swingarm
Honda Motorcycle 1994 CBR900RR A Swingarm
Honda Motorcycle 1993 CBR600F2 A - SUPER SPORT Swingarm
Honda Motorcycle 1998 CBR900RR A Swingarm
Honda Motorcycle 1998 CBR900RR AC Swingarm
Honda Motorcycle 1998 CBR600SE AC - SMOKIN' JOE'S EDITION Swingarm
Honda Motorcycle 1998 CBR600SE A - SMOKIN' JOE'S EDITION Swingarm
Honda Motorcycle 1992 CBR600F2 A - SUPER SPORT Swingarm
Honda Motorcycle 1993 CBR600F2 AC - SUPER SPORT Swingarm
Honda Motorcycle 2000 RVT1000R AC - RC51 SWINGARM ('00-'01)
Honda Motorcycle 2000 RVT1000R A - RC51 SWINGARM ('00-'01)
Honda Motorcycle 2001 RVT1000R AC - RC51 SWINGARM ('00-'01)
Honda Motorcycle 2001 RVT1000R A - RC51 SWINGARM ('00-'01)
Stock Honda Chainguard (above)
An alternate design for the same bike:
14cms between the mounting holes on the swingarm.
Print that scaled to a 14cm on-centre gap between the mounting holes and it should fit like a glove. Time to see if we can fabricate something!
Here's the STL file if you want to mess around with 3d printing your own chainguard: