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.
937152
That's a pretty specific question. All I can say is that the crank sits fairly far out on the bottom bracket and I've ended up using short BBs like 118s or 123s.
1920283
sorry forgot to add. don't throw away your original BB. keep it some place. that way you have the all the measurements when you need to change it again. i would not be able to remember the sizes i need for my bike.i went already through a few of these BB.(never pressure wash your bike that is the beginning of the end of all the bearings... it washes out all the grease)
934773
I'm not familiar with that model and can't find specifications online. I'll share how I found the one that fit my machine. 1: Look on the sidewall of the tire and there will be a series if numbers that show the tire size. 2: Measure the width of the hub. Measure the inside distance between the fork arms. (May have to remove wheel to do this.) 3: Measure the diameter and length if the axel bolt. . Sign on to Amazon and search for "Marathon tire- flat free". That should bring us a list of all sizes available and hopefully yours is there. (You will want a centered hub. If the hub axel diameter is larger than the axel bolt you can get bushing to fit. Hope this helps. I'm not familiar with that model and can't find specifications online. I'll share how I found the one that fit my machine. 1: Look on the sidewall of the tire and there will be a series if numbers that show the tire size. 2: Measure the width of the hub. Measure the inside distance between the fork arms. (May have to remove wheel to do this.) 3: Measure the diameter and length if the axel bolt. . Sign on to Amazon and search for "Marathon tire- flat free". That should bring us a list of all sizes available and hopefully yours is there. (You will want a centered hub. If the hub... » Read More I'm not familiar with that model and can't find specifications online. I'll share how I found the one that fit my machine. 1: Look on the sidewall of the tire and there will be a series if numbers that show the tire size. 2: Measure the width of the hub. Measure the inside distance between the fork arms. (May have to remove wheel to do this.) 3: Measure the diameter and length if the axel bolt. . Sign on to Amazon and search for "Marathon tire- flat free". That should bring us a list of all sizes available and hopefully yours is there. (You will want a centered hub. If the hub axel diameter is larger than the axel bolt you can get bushing to fit. Hope this helps. « Show Less
1884346
I had mine machined to enlarge hub bore to fit trailer axle. I'll Measure when I go clear the snow. I have a un machined pair also.
1540259
My nephew outgrew his so I know longer have them. However, I measured the size of the pedals on his bike (that they were on). The pedals are 3x3. My guess (so don't quote me) is that the pedal blocks were about 3 inches wide, 4 inches long and at least 2 inches thick once placed on the pedals. My nephew is small for his age. He used these blocks on his trike from about the age of 2 1/2 until he was 4.
1386917
bottom bracket must measure 123mm from one end of the spindle to the other end
1920284
The best way would be to pull out the old bottom bracket and measure the total outside length. You could use calipers with a deep jaw.
1726064
i'm not sure, but what i did was measure the inside dimension of my rear frame where the hub bolts on. my frame was slightly smaller than the hub, so i bent my frame out, which is not neccisarily recommended, but i bent mine out with a 2x4 against the frame's post. it only needed about 3/8". i have a steel frame. other materials might not bend. also measure the hub on your current wheel, because i had to respoke my wheel with a different length spoke which was tricky to measure correctly. i would suggest doing a lot of research on the internet. there is a bike shop out of boston that has good resources on the subject. i don't remember the name, but it seems like the shop name was someone's first name. i hope that helps.
696141
about 36 inches or a little less. My trike wa hard to use until I got used to it. I take a boat motor aors and gas can to the river in it with no problem now. well worth the price, although you may save 50 bucks by shopping Craig's list.
1281814
it would be great on a 26 inch trike as long as the hub width is the same as a regular bike hub. the additional cargo capacity would allow for a bigger amp hour lead acid battery and give you a longer battery discharge. got 12 ah on my bike. get the 15 ah or next size up. unless you can afford the lithium, then never mind about the battery. but yeah, I would go for it.
2007334
The size you need is determined by the size of your hubs not your axle. the bearing buddy is available in 12 different sizes from 1.781 inches to 2.717 inches. the most common are 1.98 inches on must wheel hubs. So, you must identify what the inside diameter your wheel hubs are where the grease cap is inserted to chose the correct Bearing Buddy. You can easily do this by prying off the existing grease cap and measuring the width of the portion of the cap that fits into the hub. If that is only one inch than the bearing buddy is to large for your use. I hope this info helps you, Alan
696198
All these hub have a standard size do a search for trailer hub specs on the internet and most will give dia depth and bolt patternsJim
1310154
I have a Cobra out-drive, and the hub fits mine. You can use different sized Props, for optimal performance. I choose to use Aluminum, and buy more than one prop. Hope this helps
654517
I really think it depends on your chainstay clearance, chainring and crank arms. What I did to figure that out was to use websites like this one: http://sheldonbrown.com/chainline.html to figure out what length bottom bracket best worked for my bike. If you are running a triple, you should be at 45 (I'm assuming you are because you specifically asked about a chainline of 45), but a double should be 43.5mm...and on and on depending on your bike and gearing. You can also adjust the spacers on the back axle as well, but this shouldn't be necessary if you know that your rear (sprocket end) is at 45mm, which is what you are trying to achieve (explained here: http://www.velodromeshop.net/index.php?p=page&page_id=chainline). Sorry, not an easy yes or no answer. Just check those sites out and do the measurements and you should be ok. Hope I helped...good luck!
1252721
its going to make an old school crank, like a 1 piece design) adapt to a cartridge style bottom bracket, you decide the size of the bb, depending on the crank choice. hope that helps
42174
I can't say specifically. you need to measure the width of your bottom bracket. many sizes are available