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Manufacturer	Model	Year	Claimed<	Real	±	Comments
A2Z	Super Lightweight Buzz Raw 160 mm Rotor	2005	90 g	94.5 g	+5,00%	averaged (94/95)
A2Z	Superlite Disc Rotor Version 2 - 203 mm 6 Bolt	2006	188 g	201 g	+6,91%
A2Z	Teppan Yaki SPI-180	2006	121 g	120 g	−0,83%	180 mm IS 2000 6-bolt rotor, averaged (119/121)
A2Z	WaveDisc 180 mm Rotor	2006		157 g
Ashima	Ai2	2012	66 g	75 g	+13,64%
Avid	Ball Bearing CPS	2002		335 g		rear, disc + rotor, averaged (324/346)
Avid	Ball Bearing Seven	2005	361 g	344 g	−4,71%	front postmount caliper, rotor and bolts
Avid	Ball Bearing Seven	2005	367 g	353 g	−3,81%	rear postmount caliper, rotor and bolts
Avid	BBDB7 Mechanical disc rotor	2004		117 g		160 mm, IS 2000 6-bolt, +13 g for bolts
Avid	Clean Sweep 185 mm rotor	2006		166 g		excl. bolts
Avid	Clean Sweep rotor	2003		118 g		average of two, +13 g for bolts
Avid	G2 160 mm rotor	2007		106 g		excl. bolts
Avid	G2 185 mm rotor	2007		146 g		excl. bolts
Avid	Juicy Seven	2004		424 g		complete front, 160 mm rotor, stock hose length, w/ IS adapter
Avid	Juicy Seven	2004		445 g		complete rear, 160 mm rotor, stock hose length, w/ IS adapter
Avid	Mechanical	2001		995 g		SRAM 9.0 lever & cables
Avid	Mechanical	2003		324 g		front, 160 mm rotor, all bolts, post mount, w/out lever
Avid	Mechanical	2003		353 g		rear, 160 mm rotor, all hardware, w/out lever
Avid	Mechanical Disc	2003		377 g		front(?), 185 mm rotor and caliper, w/out bolts, w/out lever
Avid	Polygon 160 mm rotor	2006		115.3 g		excl. bolts
Avid	Polygon 185 mm rotor	2006		164 g		excl. bolts
Avid	Polygon 203 mm rotor	2006		223 g		excl. bolts
Avid	Wavy rotor	2004		104 g		160 mm
Eberle	EM	2001		969 g
Formula	4-Racing	2002		448 g		front incl. 185 mm rotor
Formula	4-Racing	2002		424 g		rear incl. 160 mm rotor, caliper, bolts
Formula	4-Racing DH	2003	994 g	1004 g	+1,01%	front & rear
Formula	Activa	2002		298 g		disc+caliper
Formula	B4	2001		736 g		front and rear set
Formula	B4	2002		358 g		Rear 140 mm rotor
Formula	B4 Pro	2003	344 g	376 g	+9,30%	front: disc, IS caliper, lever, hose, all bolts out of box
Formula	B4 Pro	2003	331 g	368 g	+11,18%	rear: disc, IS caliper, lever, hose, all bolts out of box
Formula	B4 Pro	2004		366 g		front: disc, IS caliper, lever, hose, all bolts out of box
Formula	B4 Pro	2004		420 g		rear: disc, IS caliper, lever, hose, all bolts out of box
Formula	B4 Pro 140 mm rotor	2004		86 g		rear rotor only, w/out bolts
Formula	B4 Pro 160 mm rotor	2004		115 g		front rotor only (mounting screws for rotor & caliper 17 g)
Formula	B4 Pro 185 mm rotor	2003		148 g		rotor only
Formula	B4 Pro+	2004	324 g	360 g	+11,11%	front 160 mm, IS 2000, uncut
Formula	B4 Pro+	2004	370 g	400 g	+8,11%	rear 160 mm, Postmount, uncut
Formula	B4 Pro+ 160 mm rotor	2004		110 g		+12 g for screws
Formula	B4 SL	2003	587 g	631 g	+7,50%	front+rear: incl. IS calipers, 160/140 mm rotors, all mounting bolts, averaged (630/632)
Formula	B4 SL	2003		784 g		front+rear: incl. IS calipers, 185/160 mm rotors, all bolts
Formula	B4 SL	2003	297 g	320 g	+7,74%	front: disc 111 g, rotor bolts 12 g, caliper+lever+cut hose 197 g
Formula	B4 SL	2003	290 g	299 g	+3,10%	rear: disc 83 g, rotor bolts 12 g, caliper+lever+cut hose 204 g
Formula	Oro	2005		400 g		front 160 mm with IS 2000 adaptor; as out of the box, uncut (85 cm), fully bled, all bolts (steel) included
Formula	Oro	2005		417 g		rear 160 mm with IS 2000 adaptor; out of the box, uncut (165 cm), fully bled, all bolts (steel) included
Formula	Oro 160 mm front rotor	2005		111 g		w/out bolts
Formula	Oro 160 mm rear rotor	2005		102 g		w/out bolts, design differs slightly from front rotor
Goodridge	Front hose kit (Magura Marta)	2004		69 g		900 mm
Goodridge	Rear hose kit (Magura Marta)	2004		114 g		1650 mm
Grimeca	System 8	2001		928 g
Grimeca	System 8	2001		486 g		stock, inc. all mounting bolts
Grimeca	System 8 Front	2001		368 g		Inc. JTI alloy rotor, Ti/Al bolts
Hayes	FH	2001		932 g		w/ IS 2000 adapter
Hayes	HFX Comp	2002		466 g		Front brake, includes lever, caliper, hose, rotor and bolts
Hayes	HFX Comp	2002		490 g		Rear brake, includes lever, caliper, hose, rotor and bolts
Hayes	HFX Mag Plus (Ti bolts, Carbon lever body)	2003	368 g	387 g	+5,16%	front, fully bled, all bolts and rotoe (113 g)
Hayes	HFX Mag-Plus (Ti bolts, Carbon lever body)	2003		416 g		rear, fully bled, all bolts and rotor (115 g), avrg(407/425)
Hayes	HMX-1	2003	390 g
Hayes	Mud Cutter Wavy Rotor	2004		116 g		ø160 mm, 6 hole IS 2000, excl. bolts
Hayes	MX-1	2001		1041 g		SRAM 9.0 lever & cables
Hayes	Standard Rotor	2003		112 g		ø160 mm, 6 hole IS 2000, +13 g for bolts
HBC	185 mm Titanium rotor	2005		105 g		rotor only, 2 mm thickness, 6 holes
Hope	165 mm M4 6-bolt rotor	2004		137 g
Hope	185 mm 6-pot 6-bolt rotor	2004		155 g
Hope	205 mm 6-pot 5-bolt rotor	2004		176 g
Hope	205 mm M4 6-bolt rotor	2004		172 g
Hope	Gothic rotor	2004	125 g	124 g	−0,80%	ø160 mm, +13 g for incl. bolts
Hope	M4	2002		567 g		front, 205 mm rotor, also weighed 562 g for a No.6 caliper brakre (RS Boxxer)
Hope	M4	2002		557 g		rear, 185 mm rotor
Hope	M4	2003		520 g		front, 185 mm rotor (= 190 g, disc bolts: 12 g, caliper/lever/hose/shims/bolts: 318 g)
Hope	Mini	2002		454 g		185 mm rotor
Hope	Mini	2002	380 g	401.5 g	+5,66%	Front, 165 mm rotor w/ lever, caliper, hose, bolts & all shims, averaged (390/413)
Hope	Mini	2002		384.5 g		rear, 145 mm rotor, averaged (380/389)
Hope	Mini	2003	380 g			incl. 165 mm rotor, lever, hose, bolts
Hope	Mini	2003		447 g		IS front, w/ ø185 mm rotor, complete
Hope	Mini front rotor	2002		125 g		ø165 mm, +7 g for Ti bolts
Hope	Mini rear rotor	2003		98 g		ø145 mm, w/out bolts
Hope	Mono M4	2004	430 g	443 g	+3,02%	IS front, w/ ø180 mm 5-hole rotor
Hope	Mono M4	2004	430 g	456 g	+6,05%	IS front, w/ ø180 mm 6-hole rotor, complete
Hope	Mono M4	2004		411 g		IS rear, w/ ø160 mm 5-hole rotor
Hope	Mono M4	2004		474 g		IS rear, w/ ø180 mm 6-hole rotor and all mounting bolts
Hope	Mono M4	2004		461 g		PM front, w/ 180mm 6-hole rotor and all bolts
Hope	Mono Mini	2003	380 g	414 g	+8,95%	complete front setup, 160 mm rotor
Hope	Mono Mini	2003	380 g	404 g	+6,32%	complete rear setup, 140 mm rotor
Hope	Mono Mini	2004		388 g		front, complete: caliper (270 g), uncut, full bled w/ all hardware + 160 mm rotor (118 g)
Hope	Mono Mini	2004		382 g		rear, complete: caliper (282 g), uncut full bled w/ all hardware + 140 mm rotor (100 g)
Hope	Mono Mini Pro Lightweight rotor	2009		66 g		140 mm 6-bolt
Hope	Mono Mini Pro Lightweight rotor	2009		78 g		160 mm 6-bolt
Hope	Mono Mini rotor	2005		90 g		ø160 mm w/ Al carrier, IS 2000 6-holes, excl. bolts
Hope	Mono Mini rotor	2005		127 g		ø180 mm w/ Al carrier, IS 2000 6-holes, excl. bolts
Hope	Mono Mini rotor incl. bolts	2003		120 g		ø160 mm
MAGURA	Clara	2001		903 g
MAGURA	Gustav M.	2001		513 g		front, 185 mm disc
MAGURA	Gustav M.	2001		571 g		rear, 160 mm disc
MAGURA	Gustav M. rear rotor	2003		206 g		ø190 mm, steel
MAGURA	Julie	2001		481 g		front, 180 mm disc, averaged (478/484)
MAGURA	Julie	2001		457.5 g		rear, 160 mm disc, averaged (457/458)
MAGURA	Julie front rotor	2001		189 g		ø180 mm
MAGURA	Julie rear rotor	2001		153 g		ø160 mm
MAGURA	Louise	2000		432 g		front, incl. all hardware + 75 cm hose
MAGURA	Louise	2000		450 g		rear, incl. all hardware + 155 cm hose
MAGURA	Louise	2001		798 g
MAGURA	Louise	2001		392 g		Front inc. brake assembly, 160 mm disc, mounting bolts and disc bolts
MAGURA	Louise	2001		417 g		Rear inc. brake assembly, 160 mm disc, mounting bolts and disc bolts
MAGURA	Louise	2002	385 g	388 g	+0,78%	front brake
MAGURA	Louise	2003	776 g	812 g	+4,64%	front+rear, IS(?)
MAGURA	Louise	2004	398 g	432 g	+8,54%	rear IS, complete, averaged (431/433)
MAGURA	Louise FR	2004	411 g	445 g	+8,27%	front, incl. 180 mm rotor + all bolts
MAGURA	Louise FR	2004	398 g	430 g	+8,04%	rear, incl. 160 mm rotor + all bolts
MAGURA	Louise FR front	2002		487 g		Complete, incl. 180 mm disc, bolts, spacers
MAGURA	Louise FR rear	2002	411 g	425 g	+3,41%	Complete, incl. 160 mm disk, bolts
MAGURA	Louise FR SL rotor	2006		153 g		ø180 mm
MAGURA	Louise front assembly	2004	398 g	411 g	+3,27%	Includes everything, bolts, etc...
MAGURA	Louise rotor	2000		151 g		ø160 mm, less dense hole pattern of two available
MAGURA	Louise rotor	2004		134 g		ø160 mm
MAGURA	Louise Ventidisc 180 mm rotor	2007		208 g		ø180 mm, w/out bolts
MAGURA	Louise/Clara rotor	2000		147 g		ø160 mm, 4 hole IS 2000
MAGURA	Marta	2002		273 g		complete front, Al rotor, Ti hardware
MAGURA	Marta	2002		287 g		complete rear, Al rotor, Ti hardware
MAGURA	Marta	2002		397 g		Front incl. lever and everything
MAGURA	Marta	2002		413 g		Rear incl. lever and everything
MAGURA	Marta	2003	350 g	366 g	+4,57%	front complete
MAGURA	Marta	2003	350 g	361 g	+3,14%	rear complete, averaged(358/364)
MAGURA	Marta rotor	2002		126 g		ø160 mm
MAGURA	Marta SL	2003	324 g	343 g	+5,86%	front IS, complete
MAGURA	Marta SL	2003	324 g	356 g	+9,88%	rear, complete
MAGURA	Marta SL	2004	324 g	344.5 g	+6,33%	front IS, complete as out of the box, averaged (342/347)
MAGURA	Marta SL	2004	324 g	361 g	+11,42%	rear, complete as out of the box, averaged (360/362)
MAGURA	Marta SL rotor	2003		109 g
Shimano	Deore Hydraulic BR-M555/BL-M555	2002		547 g		rear, complete w/ lever (111 g), caliper (173 g), SM-RT60 rotor, hose, fittings + oil
Shimano	Deore mechanical	2001		1179 g		SRAM 9.0 lever & cables
Shimano	Deore XT BR-M755	2002		936.5 g		complete, front 450 g, rear 480 g, 800/1400 mm hoses, averaged (930/943)
Shimano	Deore XT BR-M755	2003		458 g		front, ø160 mm, incl. hose/fluid/lever/disc/caliper/bolts
Shimano	Deore XT BR-M755	2003		469 g		rear, ø160 mm, incl. hose/fluid/lever/disc/caliper/bolts
Shimano	Deore XT BR-M765 rear caliper	2004		149 g		w/ IS 2000 adapter, w/out pads
Shimano	Deore XT SM-RT75 rotor	2002	140 g	139 g	−0,71%	160 mm, incl. bolts (13 g)
Shimano	Deore XT SM-RT75 rotor	2003	140 g	140 g	±0,00%	160 mm, incl. bolts
Shimano	Deore XT SM-RT75-DH rotor	2002		198 g		203 mm, IS 2000 6-holes, excl. bolts
Shimano	Deore XT SM-RT75-MA rotor	2009		151 g		180 mm 6-bolt rotor, excl. bolts
Shimano	Deore XT SM-RT76 rotor	2010		125 g		160 mm 6-bolt, excl. hardware
Shimano	Deore XT SM-RT76 rotor	2010		152 g		180 mm 6-bolt, excl. hardware
Shimano	Deore XT SM-RT77 rotor	2004	149 g	148.5 g	−0,34%	160 mm, incl. lock ring (10 g), averaged (147/150)
Shimano	Deore XT SM-RT78 rotor	2009		140 g		160 mm Centerlock, incl. lockring
Shimano	SM-RT53 rotor	2008		179 g		ø160 mm, incl. lock ring (17 g)
Shimano	SM-RT60 rotor	2002	168 g	169 g	+0,60%	w/ fixing bolts
Shimano	SM-RT61 rotor	2006		175 g		160 mm 6-bolt, incl. bolts
Shimano	SM-RT62 rotor	2007		162 g		160 mm Centerlock, incl. lockring
Shimano	SM-RT97-M rotor	2007		163 g		ø180 mm, incl. lockring
Shimano	XTR BR-M965-F	2003	98 g	103 g	+5,10%	Front Disc Brake Caliper
Shimano	XTR BR-M965-F caliper	2003		81 g		IS 2000, w/ bolts, w/o brake pads
Shimano	XTR BR-M965-R + ST-M965	2003		512 g		rear IS, incl. SM-RT96 rotor w/lockring, metal pads, 1230 mm hose, bolts and oil
Shimano	XTR BR-M965-R caliper	2003	100 g	105 g	+5,00%	rear IS 2000, w/ resin pads, w/ bolts
Shimano	XTR BR-M965-R caliper	2004		96 g		rear IS 2000, w/ resin pads, w/out bolts
Shimano	XTR BR-M966-F + ST-M965	2003		516 g		front PM, incl. SM-RT96 rotor w/lockring, metal pads, 710 mm hose, bolts and oil
Shimano	XTR BR-M966-F caliper	2003	104 g			Disc Brake Caliper for Post Mount/Front only
Shimano	XTR SM-RT96 rotor	2003	139 g	136.3 g	−1,94%	ø160 mm, incl. lockring, averaged (135/136/138)
Shimano	XTR SM-RT96 rotor	2004		118 g		ø160 mm, add 10 g for lockring
Stan's	Aluminium rotor	2003	37 g	36 g	−2,70%	ø140 mm, 4+6 hole compatible
Stan's	Aluminium rotor	2004	54 g	53 g	−1,85%	ø160 mm, 4+6 hole compatible
Stan's	Aluminium rotor w/ special coating	2004	57 g	62 g	+8,77%	ø160 mm, 4+6 hole compatible, allows the use of stock brake pads
Stan's	One Aluminium rotor w/ special coating	2005	57 g	62 g	+8,77%	ø160 mm, 4+6 hole compatible, allows use of regular pads, averaged (62/62)
Suntour	DB-700	2001		1166 g
Syntace	Disc Shim 0,2 mm, 8 pcs.	2005	8 g	6 g	−25,00%	weighed 16 pcs. and divided by 2
Tektro	Gemini	2001		1020 g
Tektro	Novela	2001		1063 g		front+rear, SRAM 9.0 levers & cables
Voxa	MD3.5	2001		1073 g		front+rear, SRAM 9.0 levers & cables
Winzip	Ultimax-F caliper	2002	201 g	235 g	+16,92%	IS caliper incl. pads and 2 pcs. M6x20 steel bolts
Winzip	ZR-160 rotor	2002		144 g		ø160 mm steel rotor incl. 6 pcs. M5x0.8 steel bolts

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