FAQLoad - Lightweight MTB disc hubs

Sorted lightest to heaviest

Type	Front (g)	Rear (g)	Total	Front ($)	Rear ($)	Price (approx.)	Notes	Podium MMX + DT Swiss Revolution Build Weight Estimate (g)
Extralite Hyper	78	168	246	270	600	870	Hi/lo flange for front hub	1151
Mack - superlight	83	199	282	210	430	640		1187
Tune Prince/Princess	105	190	295	280	590	870		1200
DT Swiss 180	107	207	314	425	825	1250		1219
Mack - standard	96	226	322	190	320	510		1227
Tune King/Kong	115	212	327	185	370	555		1232
A2Z	119	231	350	N/A	N/A	200	9mm QR version	1255
Soul Kozak	128	245	373	145	335	480	6-bolt 9mm QR version	1278
Rotaz	132	254	386	N/A	N/A	150		1291
DT Swiss 240s	145	244	389	189	349	538		1294
Circus Monkey	115	277	392	N/A	N/A	140	Centre-lock	1297
Novatec D711SB D712SB-AA	140	275	415	N/A	N/A	145		1320

Type	Front (g)	Rear (g)	Total	Front ($)	Rear ($)	Price (approx.)	Notes	Podium MMX + DT Swiss Revolution Build Weight Estimate (g)
Circus Monkey	115	277	392	N/A	N/A	140	Centre-lock	1297
Novatec D711SB D712SB-AA	140	275	415	N/A	N/A	145		1320
Rotaz	132	254	386	N/A	N/A	150		1291
A2Z	119	231	350	N/A	N/A	200	9mm QR version	1255
Soul Kozak	128	245	373	145	335	480	6-bolt 9mm QR version	1278
Mack - standard	96	226	322	190	320	510		1227
DT Swiss 240s	145	244	389	189	349	538		1294
Tune King/Kong	115	212	327	185	370	555		1232
Mack - superlight	83	199	282	210	430	640		1187
Extralite Hyper	78	168	246	270	600	870	Hi/lo flange for front hub	1151
Tune Prince/Princess	105	190	295	280	590	870		1200
DT Swiss 180	107	207	314	425	825	1250		1219

Rockshox 15mm maxle light weighs 74g. Thankfully, there are now a few options available for lightweight 15mm axles:

It is quite difficult to find lightweight 24" tubes, but I recently stumbled on a solution that so far has proved acceptable.

There are not many lightweight rims available for 24" mountain bikes. The three options I know of are:

Here's some data I've collected on my search for a new oversize (31.8mm) MTB stem:

Here's some information I have collected on 180, 160 and 140mm lightweight disc brake rotors:

For 2011 the Tune Kong rear disc hub has dropped some weight - claimed weight is 205g, mine weighed 212g: