pi_id pi_fkbv_pistdia pi_fkbv_pistdesc pi_fkmv_pistdia pi_fkmv_desc pi_fkbv_comm 1 20 k20c-bv 22 k22-60bld KYB mini, caged 20mm bv pist, 04kx85 2 20 s20c-bv 24 k24-0bld Showa mini, caged 20mm bv pist, 07crf150 3 20 k20-bv-yz85 24 k24-56bld KYB 20mm yz85 bv pist, 12yz85 4 23 s23 25 k25-61bld Showa 47, 23mm bv pist, 04rm250 5 28 k28-side-56bld 6 32 k32-2pc-0bld 7 32 k32-side 8 25 k25 32 k32-2x42bld KYB 48, 25mm bv pist, 05-08kx250 9 23 s23-tri20-55bld 10 28 k28-yz 23 s23-trap20-55bldT KYB 48, 28mm bv pist with 4mm orifice, all 05 Yamaha 11 23 s23-trap18-55bld 12 28 k28-kx-rm 23 s23-trap18-53bld KYB 48, 28mm bv pist with 4mm orifice, 05kxf250 13 23 s23-trap18-0bld 14 28 k28-side unknown KYB 46, KYB 48, 28mm bv pist with holes in side, only 05cr125 15 20 20 16 28 k28-side 20 20c KYB 46, 32mm bv pist with holes in side, 01yz250 17 20 k20-yz85 18 28 k28-side 20 w20-4port-sm KYB 46, KYB 48, 32mm mv pist, two piece, 02yz250 19 20 w20-4port-lg 20 22 22 21 28 w28-tc 23 23 WP 48, 28mm bv pist found in OC, TC and 2017-2018 XPLOR forks, [partnu 4860 0047s] (1675f) 11xc250 22 24 24 23 28.8 w28-4CS-14 25 25 WP 48, 27.8/28.8mm bv pist found in 4CS, 2014 only 24 26 26 25 28 28 26 32 k32-psf 30 30 KYB 48, 32mm bv pist, found on 13crf450 PSF, possibly PSF2 27 32 k32-psf 32 32 KYB 48, 32mm bv pist, found on 14crf450 PSF, possibly PSF2 28 24 s24-56bld 29 34 s34 32 k32-2pc-2x37bld Showa 47, 33.25mm bv pist, used with 12 rod on 06rmz450 30 34 s34 adam-rev2 Showa 47, 33.25mm bv pist, used with 12.5 rod on 08rmz450 31 32 34 w34 34 34 WP AER, generic bv piston 33 34 w34-aer-17 20 k20-yz85-59bld WP AER, 34mm bv pist, first seen in 16sxffe450 34 34 w34-aer-18 20 k20-yz85-62bld WP AER, 34mm bv pist, first seen in 18sxf350 e.g. 35 20 w20-4port-lg-62bld 36 35 k35-06 20 w20-4port-lg-60bld KYB 48, 35mm bv pist with square port edge, 06-07 Yamaha 37 35 k35-08 20 w20-4port-lg-57bld KYB 48, 35mm bv pist with tapered port edge, 08-on 38 k35-08-handsurf 20 w20-4port-lg-56bld KYB 48, 35mm bv pist with tapered port edge, 08-on, machine surfaced by Herschel 39 k35-08-surfha 34 w34-plastic 40 35 s35-10 34 w34-steel-16 Showa 48, 35mm bv pist with square port and 0021 pist prel, first on 10crf250 41 34 w34-steel-18 42 35 k35-4hole 34 w34-steel-18-53bld KYB 48, 35mm bv pist with 4 small holees, only found on 06kxf450 43 28 ktech-28 34 w34-steel-18-44bld ktech 28mm bv pist from xplor fk kit 117-600-023-001 44 34 w34-steel-18-43bld 45 37 s37-13 34 w34-steel-16-49bld Showa 48, 37mm bv pist with 0023 pist prel, first seen on 13crf250 46 34 w34-steel-18-42bld 47 48 39 s39-15 23 w23-tc Showa 49, 39mm bv pist, first seen on 15crf250 49 23 w23-tc-55bld 50 23 w23-tc-53bld 51 cpbvw-proto 23 w23-tc-2.66bld WP 4CS prototype bv pist, circ plate bv wp, see test 1864 52 53 rapadv 34 w34-steel-21 Use for all rapadv tests, currently only two tests 54 23 55 rpbvw_01 WP 4CS, restrictor pist, bv, wp 4CS, vers 1 56 rpbvw_02 WP 4CS, restrictor pist, bv, wp 4CS, vers 2 57 rpbvw_03 34-goldvalve WP 4CS, restrictor pist, bv, wp 4CS, vers 3 58 rpbvw_04 WP 4CS, restrictor pist, bv, wp 4CS, vers 4 59 rplate-proto WP 4CS, prototype restrictor plate, bv, wp 4CS, vers 4 60 k25-56bld 61 62 63 64 w28-4CS-15-1port WP 4CS 28.8 bv pist with 19mm ground shim covering 2 ports leaving 1 port open 65 w28-4CS-15-2port WP 4CS 28.8 bv pist with 19mm ground shim covering 1 port leaving 2 ports open 66 w28-4CS-15-3port WP 4CS 28.8 stock bv pist, the stk bv pist with 3 ports open, 2015-2016 67 68 unknown Any bv pist that is unknown 69 70 fbv-n10z-kyb32 KYB 48, n10z 32mm bv pist, PSF and PSF2 forks 71 72 fbv-pc Use this for all pro circuit pistons as we will only see a couple, adjust/expand as needed 73 74 fbv-c2p Use this for all c2p bv pistons as we will only see a couple, adjust/expand as needed 75 27.5 w27.5-xplor 23 w23-f1cone-19 WP XPLOR, (2017-2018 had 28mm bv pist), 2019-on have 27.5mm [partnu 4860 1934s] (3815 f1) 21tx300 76 27.5 ktech-27.5 23 ktech-23 ktech 27.5mm bv pist from their xplor fk kit 117-600-023-002 / we had a 28mm from 177-600-023-001 and mach down to 27.3 od 77 23 w23-xplor 78 79 80