pedal sprocket thing?

J

JasperAsh

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azbill

Active Member
Joined
Dec 15, 2006
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I have heard it called bottom bracket as well, you will probably need to know whether it takes a 1-piece crank or a 3-piece...they are different threads if I am not mistaken
 
J

JasperAsh

Guest
ah, is there any way to describe my bike more specifically then a cruiser so when i go to my bike shop, i can ask around and not seem like a complete dope?
 
G

gone_fishin

Guest
yeah, bottomset & crankset goes into bottombracket. (i think?)

usually, "size" is much more important than "style" when talking about mechanical components...if it's in the budget, get a cheap plastic vernier caliper and familiarize yourself with your frame's specs.
 
P

psuggmog

Guest
Bikespeak 101

bottom bracket=Pedal crank bearing assembly
(there are four common variations in bearing sets:
astrabula crank=1 piece(the crank used on most 1930s and newer balloon tired and current cruiser bikes.
cottered crank= 3 piece cranks, usually steel, held on the "spindle(crank axle) with steel pins. ex: old european and asian bikes before late 1970s.
collerless cranks=steel or alloy cranks held on a tapered diamond or splined spindle with retaining bolts. ex: most older top end racing bicycles and most contemporary bicycles that don't have an astrabula crank. Furthermore, the 3 piece cranks have three different sized common bearing cup sizes and thread combinations. They are known as english(the most common), french, and italian types. Some of these have a reverse thread on one side as well.) Many newer cotterless cranksets use a cartridge type spindle and bearing assembly.
headset=Front fork bearing assembly
dropouts=slotted frame and forkends where the hub axle mounts
stem or gooseneck.=handlebar holder that mounts in the steering tube of the fork
 
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