I have a custom built Trike using a Nexus I.G. Hub. Can you tell me how to determine BB length I should use?
603804
You can measure the bottom bracket length wise, they're usually about 120mm (5"about). Not familiar with trike measurements though.
603805
There are a few things to consider.... first bb width on the frame, then the thread type which is critical cause if you mess that up your frame is as good as done. You should look up your frame online is the best advice i can give you there. And then lastly, you have to determine your chainline, this is going to be unique to your setup. Sheldon Brown has some great charts. Actually Sheldon's website prob has info for all these questions of yours, may he RIP. However these are things that you may want to check with at your local bike shop... shouldnt be more than 25 or 30 bucks for some knowledge and the correct part, here in TX at least. There are a few things to consider.... first bb width on the frame, then the thread type which is critical cause if you mess that up your frame is as good as done. You should look up your frame online is the best advice i can give you there. And then lastly, you have to determine your chainline, this is going to be unique to your setup. Sheldon Brown has some great charts. Actually Sheldon's website prob has info for all these questions of yours, may he RIP. However these are things that you may want to check with at your local bike shop... shouldnt be more than 25 or 30 bucks for some... » Read More There are a few things to consider.... first bb width on the frame, then the thread type which is critical cause if you mess that up your frame is as good as done. You should look up your frame online is the best advice i can give you there. And then lastly, you have to determine your chainline, this is going to be unique to your setup. Sheldon Brown has some great charts. Actually Sheldon's website prob has info for all these questions of yours, may he RIP. However these are things that you may want to check with at your local bike shop... shouldnt be more than 25 or 30 bucks for some knowledge and the correct part, here in TX at least. « Show Less
603806
Check your old one. 97.2% of the time it's written right on the bracket cartridge unless your builder really cheaped out. OR If it's a new build it's based on what the crank calls for. The paperwork with the crank will tell you what you'd need for a proper chainline.
19505
lft/rt lengths are 50/50 on the 2 bb's I bought. Not sure how to how to adjust for that. Maybe by using a spacer between the frame bb????
388942
outside to outside of bearning is 5". if the tire size is the same, then make the hub work by adding washers to make it wider, or cut the hub to make it shorter to make it work. ---- mine are working great for me so far
55201
if you have the tools the simplest way is to rip out the BB and check the label that is on it. the few times i changed the BB it did not even occur to that there could be a difference. if all your screws on your ride are metric then the BB may be as well.but if you can check the label on the BB that be your best bet.
1252720
I dont know specifically in actual size, bit, if you look at the cups, in relation to what the BB is, it adds a pretty considerate size. I used in a custom Beach Cruiser, and didnt even notice it once on bike. Allowed the perfect upgrade!
830541
there are many guides online. Just do a search or look here http://www.pacifictrailers.com/Measuring-your-trailers-wheel-bolt-circle/
1748988
Hub with is 135 mm, rim is drilled for schrader. If you want to use presta you must use an adapter.
1129096
Yes it will.....the drivetrain dimensions and measurements (hub spacing) on 90% of adult trikes out there are pretty much the same.
2019899
Measure everything in the bottom bracket that's what I did. Info is on your bike vendors Web site
530361
Hello,The hub bore is 72.6. Let us know if you need anything else.Thanks,-Troy
244794
There are different bcd (bolt circle diameter) for different cranks. If yours is a four bolt pattern it is most likely a 74 bcd and this one would work. However, there are many five bolt patterns such as 110 for compact road and 130 for standard road. So find the bcd for your cranks and you will have your answer.
1060242
Pull off existing hub. Wipe off grease. Is spindle tapered? If yes, measure diameter at back end and front end......you could also measure diameter of inner bearing race. If rear is 1 - 3/8 and front is 1-1/16 then your good. That's it.
1287687
The hub is ISO threaded (1.375" x 24 tpi). It should work with most any threaded freewheel (italian, ISO, or british, which are 1.378", 1.375", and 1.370" respectively, all 24 tpi).
206477
Yes it is but of course you will need toa) choose a spoke pattern and b) calculate the spoke lengths http://sheldonbrown.com/rinard/spocalc.htmc) Get the spokes cut at a good bike shop. I forget what I paid but it was cheap and they did in 20 minutes.You want to get the spoke length right: too long will wreck your inner tune and too short weakens the overall wheel.I got it right within half a millimeter first time just by doing the math. I used spocalc and also my own trigonometry to get the same result.It was a worthwhile exercise and I could do it all quicker next time :) Yes it is but of course you will need toa) choose a spoke pattern and b) calculate the spoke lengths http://sheldonbrown.com/rinard/spocalc.htmc) Get the spokes cut at a good bike shop. I forget what I paid but it was cheap and they did in 20 minutes.You want to get the spoke length right: too long will wreck your inner tune and too short weakens the overall wheel.I got it right within half a millimeter first time just by doing the math. I used spocalc and also my own trigonometry to get the same result.It was a worthwhile exercise and I could do it all... » Read More Yes it is but of course you will need toa) choose a spoke pattern and b) calculate the spoke lengths http://sheldonbrown.com/rinard/spocalc.htmc) Get the spokes cut at a good bike shop. I forget what I paid but it was cheap and they did in 20 minutes.You want to get the spoke length right: too long will wreck your inner tune and too short weakens the overall wheel.I got it right within half a millimeter first time just by doing the math. I used spocalc and also my own trigonometry to get the same result.It was a worthwhile exercise and I could do it all quicker next time :) « Show Less
1999219
Hey Roy, I've never seen that on a BB. Is the old BB a three piece design? If you're moving to a cartridge style you'll have to measure, but likely a 118mm or 123mm spindle length will be what you need. Read this page http://www.parktool.com/blog/repair-help/chainline-concepts it will help.
1386917
bottom bracket must measure 123mm from one end of the spindle to the other end
1184034
you need to measure the bottom bracket shell and the spindle on the old bottom bracket (it is most likely a 68mm x 115-120mm bottom bracket but measure to be sure) here is an image http://www.peterverdone.com/wiki/images/5/5f/Hollowtech-II-3.jpg and a handy chart http://sheldonbrown.com/bbsize.html