Freewheel 8 speed. What to buy?
- Thread starter bikefan1
- Start date
FluxZoom
100 W
I think (could be wrong) the reason why 11t isn't commonly used is because the rate at which the that cog would spin and be worn down might be rather quickly. I also think you should measure the width of your dropout spacing to make sure you can fit a hub motor with your freewheel. Many likely do not use above a 7 speed cassette/freewheel due to spacing limitations as most dropout spacing is 135mm on most frames. If your frame isn't made out of aluminum you might be able to spread the dropouts apart further and use some spacers to make it work out with an 8 speed.
Freewheel I use: http://www.amazon.com/Shimano-MF-TZ31-Tourney-Freewheel-14-34T/dp/B003RLNOKC/ref=as_li_ss_tl?ie=UTF8&linkCode=ll1&tag=zvnfhlebcd-20&linkId=889307f16409174e27e0518d0d0bed05 this one.
Freewheel I use: http://www.amazon.com/Shimano-MF-TZ31-Tourney-Freewheel-14-34T/dp/B003RLNOKC/ref=as_li_ss_tl?ie=UTF8&linkCode=ll1&tag=zvnfhlebcd-20&linkId=889307f16409174e27e0518d0d0bed05 this one.
motomech
10 MW
These is only one brand that has an 11T sm. gear , the Enoch DNP.
It's kind of crude, but works OK.
They make two 8-speeds, you want the one with the smallest large gear, the one with the large, large gear has sort of a gap in the middle and doesn't shift as well.
All the high-end Eparts suppliers sell them like Ebike CA.
Since your shipping is unusual, I'll leave to you to search with one would be best for you.
It's kind of crude, but works OK.
They make two 8-speeds, you want the one with the smallest large gear, the one with the large, large gear has sort of a gap in the middle and doesn't shift as well.
All the high-end Eparts suppliers sell them like Ebike CA.
Since your shipping is unusual, I'll leave to you to search with one would be best for you.
spinningmagnets
100 TW
11T for the smallest cog is a horrible idea for a mid-drive, but...IMHO...its not a bad idea at all for a hubmotored ebike. I know others will disagree, and point out that the cog and the chain can wear out faster than if the cog had more teeth. My reaction is "so?"...if a rider is happy with the benefits, when weighed out over the cost of more frequent replacement?...they have been informed and they are adults.
Just for the record, I prefer to have a really large chainring on a hub bike (if the frame style will allow it, 52T-60T), that way I can get a very large ratio while still having a decently large rear sprocket. for the street, this is one of the benefits of the Electra line of frames.
Just for the record, I prefer to have a really large chainring on a hub bike (if the frame style will allow it, 52T-60T), that way I can get a very large ratio while still having a decently large rear sprocket. for the street, this is one of the benefits of the Electra line of frames.
markz
100 TW
The problem with high tooth count crank rings is the capacity of the derailleurs.
I remember trying to find a right combo with correct capacities and it was hard.
I remember trying to find a right combo with correct capacities and it was hard.
dogman dan
1 PW
People shift down from the big front chainring with an electric bike for street?
I've been using DNP freewheels for years on my bikes. My present one has done 6000km and doesn't show any significant wear. I've never changed the chain in that time either. I would recommend them to anybody for a hub-motored bike. I bought a load of them direct from DNP to help out some people on this and the UK forum because they're always in short supply. I don't sell them anymore, but I have a few left over if you want one. I have 8 speed 11/32 and 7 speed 11/30. Send me a PM if you want one.
Ykick
1 GW
I’ve only used one DNP 11T and it started out feeling tight and not very well lubricated but it came around and still in service many years/miles later.
But, I’m beginning to avoid 11T in general. Wears rapidly and puts a lot of stress on chains. 13-14T is about the best wearing final cog count I’ve found. Go big front chainring to compensate.
But, I’m beginning to avoid 11T in general. Wears rapidly and puts a lot of stress on chains. 13-14T is about the best wearing final cog count I’ve found. Go big front chainring to compensate.
motomech
10 MW
Those two observations are not necessarily mutually exclusive.
The DNP stampings are rough, the tolerances are loose and they are heavy,...
and they hold up well enough.
If they were made of unobtainium and hand built in Japan, there probably wouldn't be the demand for CST (cassette accepting) hubs that the manufacturers are responding to.
If you can believe anyone here, you can believe Dave(D8veh). He is a well respected Ebike tester who has built more Ebikes that you or I have seen. I trust his opinion better than my own.
It will go slow. With a 14 sm. gear, unless you have a great, large roadie chain ring, your legs will be spinning so fast @ 20 mph that you will look like a cartoon character.
