Inbred 29er, Alfine, bottom bracket, etc.
08-10-14, 02:25 AM
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Bikes: 1997 Kona Lava Dome - 2010 Trek 1.5 - 1995 Dawes Super Galaxy - Mosquito Exage300 - BMW R75/5
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Inbred 29er, Alfine, bottom bracket, etc.
Hi guys!
I'm in the process of building up an On One Inbred 29er SS with an Alfine 8 hub. But before I go and spend I would like to figure out this chainline thing:
- The bike has 73 mm bottom bracket shell and is intended for a 50mm chainline.
- The Alfine hub has a 42mm chainline, unless the sprocket is flipped, then it becomes 47mm.
- I'm planning on using an Acera FC-M361 28-38-48 crankset, and removing the outer and inner ring thus making the middle 38 tooth ring the one I'm using.
1) What BB spindle length do I need to get near the 47mm chainline?
2) Will the 38 tooth ring clear the stays at 47mm chainline?
BR Niels
I'm in the process of building up an On One Inbred 29er SS with an Alfine 8 hub. But before I go and spend I would like to figure out this chainline thing:
- The bike has 73 mm bottom bracket shell and is intended for a 50mm chainline.
- The Alfine hub has a 42mm chainline, unless the sprocket is flipped, then it becomes 47mm.
- I'm planning on using an Acera FC-M361 28-38-48 crankset, and removing the outer and inner ring thus making the middle 38 tooth ring the one I'm using.
1) What BB spindle length do I need to get near the 47mm chainline?
2) Will the 38 tooth ring clear the stays at 47mm chainline?
BR Niels
08-10-14, 02:30 AM
#2
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Thread Starter
Join Date: Dec 2013
Location: Denmark
Posts: 40
Bikes: 1997 Kona Lava Dome - 2010 Trek 1.5 - 1995 Dawes Super Galaxy - Mosquito Exage300 - BMW R75/5
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BTW, maybe I could use a wee bit shorter BB spindle length and put the middle 38 tooth chainring on the place of the outer chainring thus giving a cleaner look??
