sram red cassette: machined from a single block . . . . . ..?
12-11-10, 08:03 PM
#1
Senior Member
Thread Starter
Join Date: Mar 2008
Posts: 517
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
sram red cassette: machined from a single block . . . . . ..?
just looking at pictures of the SRAM Red cassette and wondering how they machined it from a single piece of metal as they claim.
the back is solid and not hollowed out. i really doubt the cassette is full of metal behind the cogs, if it is hollow and that back plate is somehow welded or joined to cover up the hollowness, could you really call it a one piece cassette?
please discuss
the back is solid and not hollowed out. i really doubt the cassette is full of metal behind the cogs, if it is hollow and that back plate is somehow welded or joined to cover up the hollowness, could you really call it a one piece cassette?
please discuss
12-11-10, 08:11 PM
#2
Senior Member
It's not one piece. The 2 small cogs are seperate. So it's a 3 piece...well, then there's the lock ring. So it's 4 pieces. 4.
12-11-10, 09:18 PM
#3
Senior Member
Join Date: Jul 2009
Location: Columbus, Ohio
Posts: 3,362
Bikes: Cervelo Soloist
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
12-11-10, 09:39 PM
#4
Senior Member
Join Date: Dec 2006
Location: So Cal
Posts: 2,678
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Yes when you look at the machining of the Red cassette its a piece of machining artwork.
__________________
It may not be fancy but it gets me were I need to go.
https://www.jtgraphics.net/cyclist_bicycles.htm
It may not be fancy but it gets me were I need to go.
https://www.jtgraphics.net/cyclist_bicycles.htm
12-11-10, 11:28 PM
#7
Member
Join Date: Aug 2007
Location: St Paul, MN
Posts: 47
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
+1....its surprising that it doesn't cost more than it does.
12-11-10, 11:39 PM
#8
Senior Member
Thread Starter
Join Date: Mar 2008
Posts: 517
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
12-11-10, 11:51 PM
#9
Senior Member
Join Date: Oct 2009
Posts: 2,698
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Yes. Look closely. Those are two very different metals. The back plate is press fit or bonded in some way. Yes, most of the cassette is machined as one piece.
12-11-10, 11:56 PM
#12
Mrs. umd
Join Date: Sep 2005
Location: Santa Barbara, CA
Posts: 1,399
Bikes: Specialized Dolce Vita & Transition
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
12-12-10, 12:01 AM
#13
Mrs. umd
Join Date: Sep 2005
Location: Santa Barbara, CA
Posts: 1,399
Bikes: Specialized Dolce Vita & Transition
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
12-12-10, 01:10 AM
#14
Senior Member
Thread Starter
Join Date: Mar 2008
Posts: 517
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
oh man i guess i just read it wrong. was going to buy the cassette just for the novelty but seeing how it's not entirely one piece it doesn't seem so nifty anymore
12-12-10, 01:39 AM
#15
Sounders FC Fan
Join Date: May 2005
Location: Pacific Northwest
Posts: 26
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
12-12-10, 02:14 AM
#16
Mrs. umd
Join Date: Sep 2005
Location: Santa Barbara, CA
Posts: 1,399
Bikes: Specialized Dolce Vita & Transition
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
12-12-10, 02:38 AM
#17
Senior Member
Thread Starter
Join Date: Mar 2008
Posts: 517
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
meh, my pg1070 cassette is nice too (and prefered by some pros), if i wanted nifty i'd go with titanium dura ace =X
edit: nm only 4/10 of the cogs are titanium seems like everyone's cheapin out on cassette design these days!!!!
edit: nm only 4/10 of the cogs are titanium seems like everyone's cheapin out on cassette design these days!!!!
Last edited by max power; 12-12-10 at 02:42 AM.
12-13-10, 06:00 AM
#18
Senior Member
Join Date: Apr 2005
Location: Austin, TX
Posts: 8,276
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 42 Post(s)
Likes: 0
Liked 3 Times
in
3 Posts
I've heard the Dura Ace cassette isn't as durable. I run 105 cassettes a lot because they're cheap and durable, and there isn't a whole lot of weight savings with Ultegra. I think it's literally something like 10 grams depending on what gear range you get.
12-13-10, 06:22 AM
#19
Peloton Shelter Dog
12-13-10, 06:23 AM
#20
Peloton Shelter Dog
just looking at pictures of the SRAM Red cassette and wondering how they machined it from a single piece of metal as they claim.
the back is solid and not hollowed out. i really doubt the cassette is full of metal behind the cogs, if it is hollow and that back plate is somehow welded or joined to cover up the hollowness, could you really call it a one piece cassette?
please discuss
the back is solid and not hollowed out. i really doubt the cassette is full of metal behind the cogs, if it is hollow and that back plate is somehow welded or joined to cover up the hollowness, could you really call it a one piece cassette?
please discuss
12-13-10, 07:16 AM
#24
Senior Member
Join Date: Aug 2007
Location: RVA
Posts: 6,404
Mentioned: 2 Post(s)
Tagged: 1 Thread(s)
Quoted: 24 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Actually the back plate pops off. I took mine apart the other day and found water inside. I had simple geened it about two weeks prior and rinsed it off with a garden hose. Was kinda shocked that it retained the water!
12-13-10, 08:00 AM
#25
Senior Member
Ti cogs will last half as long as steel cogs, at best. Some people ride terrain that doesn't require much use of large Ti cogs. If the cogs aren't used much, they will last a long time. Riding in the mountains, the 19 and 21T cogs are my most-used. I've trashed Ti cogs in only 4,000 miles.