mwkeefer
1 MW
Hello All,
If you know me, you know I search ES and ES via Google and have spent about two days trying to absorb several technical threads and posts only to come up with more confusion and options to really pair down into some workable solution.
On a side note, hopefully we will add a knowledge base with Moderators and Technically Advanced People checking posts to the Knowledge Base before committing them to the permanent archive. This is again a side note, if the Mods and Justin wants to allow me, I will code something up and host it myself on my servers (quad redundancy in 4 geographic locations - 3 USA and 1 in Europe) and allow free and advertising or other gimmick free.
So here are my questions, I know they have mostly been asked before but not by me and what I found were infinite answers in threads 43 pages + long so please if you have links to specific answers or want to short form them, please do so this is a simple thread resource for all future members:
1.) BBS-02 : Are there aftermarket crank arms which are a bolt on replacement but stronger for bikes that take a beating or have a powerful or heavy rider?
If these crank arms exist, could you point me to them please with a URL, if more than one... please list em all that you know of. Thanks!
2.) Freewheeling Bottom Brack Crank Sets for 68mm Bottom Brackets
I have read many times of lower end and some upper end freewheeling bottom brackets having bent axles, etc in terms of issues. I know many have done
the hunt for a solution but I have 2 situations:
A.) I need to drive a GNG drive setup to run at 2000w nominal and need to handle that torque - I have chainrings and adapters to compensate for cadence
and gearing
B.) More important I have a dual stage Davinci drive with I believe a maximum reduction of 64 : 1 running a 3220 4T for 7500 RPM at 44.4v nominal
The issue is, even limited to maximum 120A - That makes torque at my freewheeling crank on the order of 320 foot lbs and no load cadence of 117.
Is there a decent freewheeling crankset to support this abuse ?
3.) Ive noticed several GNG and Recumpence v4 and I think even a single stage davinci where the freewheel is embedded into the HTD pulley - great idea, is anyone offering them yet or is there a DIY thread?
Thanks in advance for your assistance, I really did try to sort the mess of threads for my own answers.
-Mike
If you know me, you know I search ES and ES via Google and have spent about two days trying to absorb several technical threads and posts only to come up with more confusion and options to really pair down into some workable solution.
On a side note, hopefully we will add a knowledge base with Moderators and Technically Advanced People checking posts to the Knowledge Base before committing them to the permanent archive. This is again a side note, if the Mods and Justin wants to allow me, I will code something up and host it myself on my servers (quad redundancy in 4 geographic locations - 3 USA and 1 in Europe) and allow free and advertising or other gimmick free.
So here are my questions, I know they have mostly been asked before but not by me and what I found were infinite answers in threads 43 pages + long so please if you have links to specific answers or want to short form them, please do so this is a simple thread resource for all future members:
1.) BBS-02 : Are there aftermarket crank arms which are a bolt on replacement but stronger for bikes that take a beating or have a powerful or heavy rider?
If these crank arms exist, could you point me to them please with a URL, if more than one... please list em all that you know of. Thanks!
2.) Freewheeling Bottom Brack Crank Sets for 68mm Bottom Brackets
I have read many times of lower end and some upper end freewheeling bottom brackets having bent axles, etc in terms of issues. I know many have done
the hunt for a solution but I have 2 situations:
A.) I need to drive a GNG drive setup to run at 2000w nominal and need to handle that torque - I have chainrings and adapters to compensate for cadence
and gearing
B.) More important I have a dual stage Davinci drive with I believe a maximum reduction of 64 : 1 running a 3220 4T for 7500 RPM at 44.4v nominal
The issue is, even limited to maximum 120A - That makes torque at my freewheeling crank on the order of 320 foot lbs and no load cadence of 117.
Is there a decent freewheeling crankset to support this abuse ?
3.) Ive noticed several GNG and Recumpence v4 and I think even a single stage davinci where the freewheel is embedded into the HTD pulley - great idea, is anyone offering them yet or is there a DIY thread?
Thanks in advance for your assistance, I really did try to sort the mess of threads for my own answers.
-Mike
