Alfine build
#1
Jet Jockey
Thread Starter
Alfine build
I'm going to build an Alfine bike this year for a move to Minneapolis. A couple of questions:
Dropouts: Alfine can be run with vertical. I've never used horizontal with disc brakes. Question is; which dropout is more of a pain for wheel installation, and do the horizontal dropouts make disc alignment a pain? Does the chain tensioner make wheel install a chore? (Read it somewhere...don't know why it would be any more troublesome than an RD, but I've never used an IGH.)
Rack: How do you run a rack with seatstay mounted disc calipers? With a cassette, I use an axle/QR mounted rack. Can't do that with an IGH.
I'm looking at a Soma Wolverine (chainstay calipers, clever sliding vertical dropouts), Soma Doublecross disc (vertical drops, will require chain tensioner, has chainstay mounted calipers), or Surly Straggler (though the word is that the dropouts are a huge pain compared to the Wolverine.)
Thoughts?
Dropouts: Alfine can be run with vertical. I've never used horizontal with disc brakes. Question is; which dropout is more of a pain for wheel installation, and do the horizontal dropouts make disc alignment a pain? Does the chain tensioner make wheel install a chore? (Read it somewhere...don't know why it would be any more troublesome than an RD, but I've never used an IGH.)
Rack: How do you run a rack with seatstay mounted disc calipers? With a cassette, I use an axle/QR mounted rack. Can't do that with an IGH.
I'm looking at a Soma Wolverine (chainstay calipers, clever sliding vertical dropouts), Soma Doublecross disc (vertical drops, will require chain tensioner, has chainstay mounted calipers), or Surly Straggler (though the word is that the dropouts are a huge pain compared to the Wolverine.)
Thoughts?
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#2
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Derailluer-like chain tensioners are for retro-builds. Don't plan a new build using one; get sliding D.O., horizontal D.O. or eccentric B.B. Direct chain-routes run cleaner and quieter.
Again, don't use if you can avoid. The "solution" is a disc rack with 1" of spacer on each side, placing the panniers 2" further apart, increasing air resistance and reducing space when riding through a gap.
How do you run a rack with seatstay mounted disc calipers?
#3
Jet Jockey
Thread Starter
Well, my friend, there's the catch.
Frame with chainstay calipers = vertical drops and chain tensioner.
Frame with sliders or horizontal = seatstay calipers and rack workarounds.
Frame with chainstay calipers = vertical drops and chain tensioner.
Frame with sliders or horizontal = seatstay calipers and rack workarounds.
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#4
Banned
Paragon sliding dropouts are a builders favorite Adjustable Dropouts - all - www.paragonmachineworks.com
the disc caliper mount moves with the disc on the Hub.. the 'Soma Wolverine' appears to have a knock off of those..
perhaps A licensed Copy since Merry Sales Importer [aka Soma] and Paragon are across the SF Bay From Each other.
Eccentric BB also Tensions The Chain , while the Hub disc and Caliper remain in 1 place.
then a Top of the Chainstay Caliper mount Location , solves pannier-rack interference ..
racks that use the skewer can use a 5mm bolt and spacers instead of the Skewer
Higher grade Steel Bolts (8mm hex head marked 8.8 ) were what I Used at the bottom of my Racks ..
they get a dab of paint on them since that is not a Stainless type alloy..
the disc caliper mount moves with the disc on the Hub.. the 'Soma Wolverine' appears to have a knock off of those..
perhaps A licensed Copy since Merry Sales Importer [aka Soma] and Paragon are across the SF Bay From Each other.
Eccentric BB also Tensions The Chain , while the Hub disc and Caliper remain in 1 place.
then a Top of the Chainstay Caliper mount Location , solves pannier-rack interference ..
How do you run a rack with seatstay mounted disc calipers?
Higher grade Steel Bolts (8mm hex head marked 8.8 ) were what I Used at the bottom of my Racks ..
they get a dab of paint on them since that is not a Stainless type alloy..
Last edited by fietsbob; 12-28-14 at 02:35 PM.
#5
Jet Jockey
Thread Starter
What frames have an eccentric bottom bracket? Or, can an eccentric BB be placed in a standard 68mm english threaded shell?
I'm thinking the chain tensioner might be my easiest bet.
I'm thinking the chain tensioner might be my easiest bet.
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#6
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Depends how the tensioner is set up. If they're closer to the frame,they can be a bit of a pain,if they hang down more they're pretty much the same as a derailleur.
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C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport,Dahon Speed Pro TT,Brompton S6L/S2E-X
#8
Banned
What frames have an eccentric bottom bracket?
is one US Builder...