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Weight Weenie Addict!
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Depends how much $$$$

For all out lightweight, cost no object....Scrub Rotors at $145 per 160 mm (54gr)
For affordable option, no special pads....Alligator New Aries around $30 per 160 mm (75 gr)
 

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Premium Member
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160mm - Hope's not a bad option. About 90g. If you've got other parts to order, as long as the dollar's good against the pound, can get 'em from Wiggle or CRC for a decent amount.

JmZ
 

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What's "social pace?"
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JmZ said:
160mm - Hope's not a bad option. About 90g. If you've got other parts to order, as long as the dollar's good against the pound, can get 'em from Wiggle or CRC for a decent amount.

JmZ
If I remember right, hope rotors rub on the bb7s. I have bb7s on one bike and a pile of hope rotors but there is some reason I use the alligator rotors on it, and I have a feeling that reason is a clearance issue.
 

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dinoadventures said:
If I remember right, hope rotors rub on the bb7s. I have bb7s on one bike and a pile of hope rotors but there is some reason I use the alligator rotors on it, and I have a feeling that reason is a clearance issue.
How? The BB-7 is fully adjustable, the pad contact, and the stack with extra washers placed before or after the CPS washers...I dont understand how the Hope floaters wouldnt fit...
 

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amillmtb said:
How? The BB-7 is fully adjustable, the pad contact, and the stack with extra washers placed before or after the CPS washers...I dont understand how the Hope floaters wouldnt fit...
I think I forgot to adjust the stack spacing vertically. Another washer would probably do it. I have no idea why I didn't think of that but thank you.
 

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Hack Racer
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sorry to make a second post, but I forgot about these I found recently on ebay.

Alligator Starlight - claimed to be 78 grams for 160mm


Then I went to the alligator website and found these:
Alligator CIRRUS - claimed to be 76 grams for 160mm


It looks to me that all these Taiwanese parts companies are going to town with lazer cutting machines. I doubt any of them are doing any thermal analysis so hopefully they don't go too overboard with the CNC lazer and start making marginal brake rotors. But I'm of the believer that for XC applications, which most weight weeniers here on this forum are, most will never cook their brakes hot enough to have it fail under extreme temperatures.
 

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dinoadventures said:
If I remember right, hope rotors rub on the bb7s. I have bb7s on one bike and a pile of hope rotors but there is some reason I use the alligator rotors on it, and I have a feeling that reason is a clearance issue.
I was worried about that before I got mine, too. I've run 160 (89-93g) and 140's (75g) on the main bike. Not a problem with the BB7's on my Ventana and Zocchi. (Yeah I know, not the lightest stuff, but stuff I trust under my 200 pound arse. :) )

JmZ
 

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Avid's BEST Rotor

Aside from all the expensive, exotic rotors- here is Avid's 100-gram(actual, verified weight) Clean Sweep Serpentine Wavy rotor. It actually performs BETTER than the G2 and G3 rotors. Too bad Avid no longer makes them, but occasionally Elguapogrande will put some up on eBay for cheap:

http://cgi.ebay.com/AVID-160mm-Serpentine-disc-rotor-NEW-light-105g_W0QQitemZ370157734378QQcmdZViewItemQQptZCycling_Parts_Accessories?hash=item370157734378&_trksid=p3286.c0.m14&_trkparms=72%3A1205|66%3A2|65%3A12|39%3A1|240%3A1318|301%3A0|293%3A2|294%3A50

Best of all...they work beautifully with the BB7. No noise, no nada....just pure stopping power.
 

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Lover, not a fighter...
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Zachariah said:
Aside from all the expensive, exotic rotors- here is Avid's 100-gram(actual, verified weight) Clean Sweep Serpentine Wavy rotor. It actually performs BETTER than the G2 and G3 rotors. Too bad Avid no longer makes them, but occasionally Elguapogrande will put some up on eBay for cheap:

http://cgi.ebay.com/AVID-160mm-Serpentine-disc-rotor-NEW-light-105g_W0QQitemZ370157734378QQcmdZViewItemQQptZCycling_Parts_Accessories?hash=item370157734378&_trksid=p3286.c0.m14&_trkparms=72%3A1205|66%3A2|65%3A12|39%3A1|240%3A1318|301%3A0|293%3A2|294%3A50

Best of all...they work beautifully with the BB7. No noise, no nada....just pure stopping power.

Quiet, cheap and they work well, eh? Yet more proof that sometimes saving only a total of50g or so, especially at the brakes, just isn't worth the hassle.
 

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Always Learning
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Jake Pay said:
I'm looking for lite weight rotor options for BB-7 calipers..
I want to go with 160mm rotors front and rear..
Also, what pads are you running with your set-up?
TIA
~Jake
PS. Pictures? I like pictures
Most of the options have been pointed out to you.

I spoke with Scrub Components via email and the Scrub rotors (lightest option available to you) with the recommended Kool-Stop pads will work with BB7's and they claim many are having success with that combination. I just couldn't justify swinging the expense.

> Chris,
>
> I was just wondering if the Scrub rotors can be used properly with Avid
> Mechanical brakes (using the correct pads for the rotors, of course)? Or
> does the deflection of the rotor caused by the single piston pushing from
> the outboard pad towards the inboard pad make these rotors not realistic
> for
> Avid Mechanical brakes?
>
> Thanks.


Bruce,
Thank you for your email and interest in Scrub Components! We have used our
rotors with no problems with Avid Mechanicals. You probably want to keep
the calipers in adjustment to help minimize the deflection, but I would tend
to that with stainless rotors as well. I hope that helps, please let me
know if you have any other questions!

Chris

Chris LaCasce
Scrub Components
www.scrubcomponents.com


I went with Alligator Windcutters (serrated) for the price/weight/performance ratio. I had been using 180mm front and rear with Avid sintered pads and had excellent braking performance last season on 2 bikes. More power than I felt I ever needed for the areas where I ride (I'm in the midwest - not the mountains). So I downsized my rotor size for this season, but stayed with the Alligator Windcutters - 160mm front (92g) and 140mm rear (60g). Avid sintered pads (or the ECB Golds) would be the pads of choice for these rotors. Price Point was selling the 160mm's for $17 and I bought the 140mm's from Nino for a little bit more. Much cheaper than Hopes or Scrubs - that's for sure.

I've been riding these for a couple of weeks (I've got about 16 hours on the bike with them) and the braking is excellent for my needs. Was out in snow, rain, ice, mud and finally this past week in spring like conditions.

160f/140r on my Dos Niner...

<a href="https://www.flickr.com/photos/[email protected]/3243932909/" title="Shot1 by singingsingletracker, on Flickr"><img src="https://farm4.static.flickr.com/3462/3243932909_6cb00836c3_b.jpg" width="1024" height="917" alt="Shot1" /></a>

140mm in the rear...

<a href="https://www.flickr.com/photos/[email protected]/3243934117/" title="Shot5 by singingsingletracker, on Flickr"><img src="https://farm4.static.flickr.com/3495/3243934117_1d5a376caf_b.jpg" width="594" height="1024" alt="Shot5" /></a>

Proper levers and housing to run things...

<a href="https://www.flickr.com/photos/[email protected]/3243933869/" title="Shot4 by singingsingletracker, on Flickr"><img src="https://farm4.static.flickr.com/3334/3243933869_1e1b191f2e_b.jpg" width="760" height="1024" alt="Shot4" /></a>

Total weight for the pictured braking system on my Dos Niner which includes levers, cables, housing, ferrules, calipers, all mounting bolts, rotors/bolts puts me at just a bit over 400g per side. No Ti bolts used. Just standard hardware.

138g caliper (2002 Type N)
24g pad
21g CPS bolts/washers
10g IS bolts
14g 160/140mm adapter
76g lever
92g 160mm rotor
12g rotor bolts
28g front housing/cable/ferrules

415g front side

138g caliper (2002 Type N)
24g pad
21g CPS bolts/washers
10g IS bolts
14g 160/140mm adapter
76g lever
60g 140mm rotor
12g rotor bolts
54g rear housing/cable/ferrules

409g rear side

Much better than the 1050g this system weighed a year ago at this time.:thumbsup: My other bike with the same rotors, a JET 9, will be pretty much the same but with Paul Love Levers and all Ti bolts. Will come in under 400g per side on that bike.

BB
 
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