1337Joined: 22 Jul 2005Posts: 6705Location: right over
does anybody want to make one of these? or just have one laying around for a random reason? i'm speccing out my new karate monkey rear wheel because the old one is totally shot. both cogs are pretty much impossibly stuck on there, the bearings have crapped out again, and the rim is trashed.
i think my new hub is going to be a flip-flop, freewheel on one side and a bolted-on cog and disc on the other - if i can avoid interference. hence, when i'm on the freewheel side the disc rotor can be used as a brake, and when i'm on the fixed gear side the disc situation hopefully just stays out of the way. any thoughts on that setup?
joeball
Posted: Sat Jun 09, 2007 12:53 pm
Joined: 24 Jul 2005Posts: 6037Location: Ether
I'd probably just skip running a disc in the rear, just use a rim brake. That way you could go from fixed to free more easily. You also have the option of front and rear brakes while running fixed as well. I might be conserned about the disc pads coming our or getting contaminated if they were run without a disc for a while
I have this hub on the 1x1 and have been happy with it, You have enough room for 3 cogs and spacers basically, makes chainline or multi gears easy to do. 36 hole is a perk too. I've considered getting another. Make sure the cone nuts are tight though, some times they come loose when new.
lantius
Posted: Sat Jun 09, 2007 1:01 pm
1337Joined: 22 Jul 2005Posts: 6705Location: right over
i was considering the rim brake situation as well, but i'm trying to figure out if rear disc would work? i've also thought about being able to have a 26" disc rear wheel to throw on there, which wouldn't work so well with rim brakes.
what hub do you have on the 1x1?
joeball
Posted: Sat Jun 09, 2007 3:06 pm
Joined: 24 Jul 2005Posts: 6037Location: Ether
Oops here it is. I am not sure who manufacture sit but Velocity, Novatec, and Woodman all put their name on it too. It's been 35$ forever, If it ever dropped to like 20$ I'd probably pick up another to have around
Decide what you want to run the KM as for 99% of your riding and set it up for that.
Aaron
Posted: Sat Jun 09, 2007 3:38 pm
Joined: 25 Jul 2005Posts: 4645
You would have to either space out the cog or the rotor. Either way it will put more of a shear load on the bolts. Grade 8 should be fine and be sure to get full thread penetration.
joeball
Posted: Sat Jun 09, 2007 3:47 pm
Joined: 24 Jul 2005Posts: 6037Location: Ether
Aaron wrote:
You would have to either space out the cog or the rotor. Either way it will put more of a shear load on the bolts. Grade 8 should be fine and be sure to get full thread penetration.
We sheared some Grade 3 bolts at work the other day, it was dang loud when the gate droped and 2 feet of water was release at once. We got the Grade 8 and were good to go but the gate still needs to be redesigned
What is the "chainline" for 135mm rear disc brake rotor?
Aaron
Posted: Sat Jun 09, 2007 3:55 pm
Joined: 25 Jul 2005Posts: 4645
[quote="joeball"]
Aaron wrote:
What is the "chainline" for 135mm rear disc brake rotor?
Not sure but we could measure it easy enough.
Alex
Posted: Sat Jun 09, 2007 4:36 pm
Joined: 18 May 2006Posts: 3128Location: Roosevelt
lantius wrote:
does anybody want to make one of these? or just have one laying around for a random reason? i'm speccing out my new karate monkey rear wheel because the old one is totally shot. both cogs are pretty much impossibly stuck on there, the bearings have crapped out again, and the rim is trashed.
Kogswell talked about making bolt on cogs (using ISO disk spacing) about a year ago. I don't know if it ever happend, but it would be worth checking with Matthew. You could also convert the right freewheel cog to bolt on with some careful drilling.
I don't think that you'll be able to get a disk and rotor onto the hub at the same time. It also doesn't give you a disk brake when you flip the wheel to ride the flop side.
Rim brakes are easier to adjust with different cog sizes on a flip/flop hub anyway.
alex
Aaron
Posted: Sat Jun 09, 2007 6:37 pm
Joined: 25 Jul 2005Posts: 4645
Alex wrote:
I don't think that you'll be able to get a disk and rotor onto the hub at the same time. It also doesn't give you a disk brake when you flip the wheel to ride the flop side.
Rim brakes are easier to adjust with different cog sizes on a flip/flop hub anyway.
alex
So I am confused, aren't rim brakes technically disc brakes? ;-)
Lets fool around on Monday at the Wrench party
lantius
Posted: Sat Jun 09, 2007 6:56 pm
1337Joined: 22 Jul 2005Posts: 6705Location: right over
Alex wrote:
I don't think that you'll be able to get a disk and rotor onto the hub at the same time. It also doesn't give you a disk brake when you flip the wheel to ride the flop side.
Rim brakes are easier to adjust with different cog sizes on a flip/flop hub anyway.
the "flop side" is fixed, it has a jake brake. so i don't need to worry about adjusting for it.
the question of clearance for the disc+rotor is the real question.
Aaron
Posted: Sat Jun 09, 2007 7:13 pm
Joined: 25 Jul 2005Posts: 4645
Jake brake? Is that vernacular for no brake (i.e. your legs)?
lantius
Posted: Sun Jun 10, 2007 1:54 am
1337Joined: 22 Jul 2005Posts: 6705Location: right over
Aaron wrote:
Jake brake? Is that vernacular for no brake (i.e. your legs)?
a jake brake is an engine brake, often found on semi trucks.
Aaron
Posted: Sun Jun 10, 2007 11:45 am
Joined: 25 Jul 2005Posts: 4645
lantius wrote:
Aaron wrote:
Jake brake? Is that vernacular for no brake (i.e. your legs)?
a jake brake is an engine brake, often found on semi trucks.
I know that! So on a bike, since you are the engine, therefore all fixed gear bikes have Jake brake. Right?
lantius
Posted: Sun Jun 10, 2007 11:51 am
1337Joined: 22 Jul 2005Posts: 6705Location: right over
Aaron wrote:
lantius wrote:
Aaron wrote:
Jake brake? Is that vernacular for no brake (i.e. your legs)?
a jake brake is an engine brake, often found on semi trucks.
I know that! So on a bike, since you are the engine, therefore all fixed gear bikes have Jake brake. Right?
yep! and since they have jake brakes they don't need rim/disc brakes. hence the cleverness of this flip/flop plan.
Aaron
Posted: Sun Jun 10, 2007 5:45 pm
Joined: 25 Jul 2005Posts: 4645
lantius wrote:
Aaron wrote:
lantius wrote:
Aaron wrote:
Jake brake? Is that vernacular for no brake (i.e. your legs)?
a jake brake is an engine brake, often found on semi trucks.
I know that! So on a bike, since you are the engine, therefore all fixed gear bikes have Jake brake. Right?
yep! and since they have jake brakes they don't need rim/disc brakes. hence the cleverness of this flip/flop plan.
I see. I was thinking you wanted both a disc brake AND a fixed cog. That might also be possible. Oh, hell, I don't know what I was thinking you were thinking. Either way, it is sure to be fun!
Have you considered what you will do when you go to a city where Jake brakes are prohibited?
rlotz
Posted: Sun Jun 10, 2007 6:02 pm
Joined: 23 Jan 2006Posts: 311Location: Capitol Hill
Aaron wrote:
Have you considered what you will do when you go to a city where Jake brakes are prohibited?
Since he's talking about freewheeling too I imagine he'll still have a front brake.
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1337
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Joined: 24 Jul 2005
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