Search found 1577 matches

by efMX Trials Electric Freeride
Mar 29 2020 9:23am
Forum: Motor Technology
Topic: Roman Kostrygin - Sur-Ron 16kw outrunner
Replies: 49
Views: 6661

Re: Roman Kostrygin - Sur-Ron 16kw outrunner

how the bike is used should also be considered in the motor and component strengths and designs.. example: bench test, no environmental stress loads.. street, pot holes and curbs.. off-road, rocks, logs, bumps and jumps (water?).. and MX, where bigger jumps requires max strength design.. (mounting a...
by efMX Trials Electric Freeride
Mar 27 2020 9:22pm
Forum: General Discussion
Topic: at home test- how to decide to call 911 for covid-19, Pandemics; history & Prevention
Replies: 16
Views: 341

Re: at home test- how to decide to call 911 for covid-19

it's used to check your blood oxygen level.. (my dad had to use one due to COPD chronic obstructive pulmonary disease.. died anyways but you could see why, organs starved of o2 shut down:(..
by efMX Trials Electric Freeride
Mar 25 2020 9:46am
Forum: General Discussion
Topic: If I don't log in, some topics don't show up, why?
Replies: 10
Views: 224

Re: If I don't log in, some topics don't show up, why?

"The Biker Bar" section is for forum members only and requires log in.. not new..
by efMX Trials Electric Freeride
Mar 23 2020 12:32pm
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 4568
Views: 473796

Re: Sur-Ron - New Mid drive Bike

I found a fellow on ebay (wickedwheelworks) who sells spokes and custom nipples to mate the small mtb spokes to the large 8+mm holes of a moto rim. I haven't read this thread in a while, but now that I'm catching up I see his name mentioned here too. Does someone have a direct contact for him? you ...
by efMX Trials Electric Freeride
Mar 18 2020 3:00pm
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 4568
Views: 473796

Re: Sur-Ron - New Mid drive Bike

machine built wheels are junk.. they didn't even weave the spokes either.. maybe contact Josh if you get stuck, could likely offer spoke calc and some professional advice for not much $$$..
by efMX Trials Electric Freeride
Mar 17 2020 9:42am
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 4568
Views: 473796

Re: Sur-Ron - New Mid drive Bike

most recently I have only seen posts about DMV rejection letters.. some early adopters got theirs registered only by lie or luck.. so depending on your local DMV and enforcement, it could be an expensive failed experiment.. falsified documents are probably not a great idea either.. and it could be h...
by efMX Trials Electric Freeride
Mar 16 2020 8:03am
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 4568
Views: 473796

Re: Sur-Ron - New Mid drive Bike

the bike is very capable out of the box but will have limited range at higher speeds.. you will need a refuel (batt swap/charge) to match petrol bike range on the trails or commute.. surron has been hair scrambler competitive if it can finish, check youtube for that .. there are a few controller and...
by efMX Trials Electric Freeride
Mar 15 2020 9:33pm
Forum: E-Bike General Discussion
Topic: Boxxbike Valkyrie : 12kw mid drive with pedals and left hand motor drive
Replies: 9
Views: 866

Re: Boxxbike Valkyrie : 8kw mid drive with pedals and left hand motor drive

cheers mate 😎 .. did you read the article linked.. wouldn't readers want to know the history of the bike development etc not just the latest version.. I've been following their progression the whole time, just don't bother posting unless there's interest.. but I have seen some mentions of Boxxbike i...
by efMX Trials Electric Freeride
Mar 15 2020 10:17am
Forum: E-Bike General Discussion
Topic: Boxxbike Valkyrie : 12kw mid drive with pedals and left hand motor drive
Replies: 9
Views: 866

Re: Boxxbike Valkyrie : 8kw mid drive with pedals and left hand motor drive

the latest iteration of Boxxbike Valkyrie LH mid drive looks great.. a huge improvement in design, power, aesthetics etc over the earlier prototypes.. so thanks for the subject bump:) .. but why would we want or need multiple threads for the same subject?? (or did you just want to take my credit for...
by efMX Trials Electric Freeride
Mar 13 2020 9:41am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Cleveland CycleWerks USA Falcon electric motorcycle moped
Replies: 3
Views: 434

Re: Cleveland CycleWerks USA Falcon electric motorcycle moped

I don't think it's designed for supercross, more of a cafe or scrambler style.. should be plenty strong under those riding conditions..(frame warranty as well I'm sure;).. the unique thing about this design is the modular vehicle design approach.. for instance the bike could grow in power with the r...
by efMX Trials Electric Freeride
Mar 12 2020 10:44pm
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 4568
Views: 473796

Re: Sur-Ron - New Mid drive Bike

Luna is out of stock on light bee atm.. I think the new luna battery is close to available since some test riders have it.. when it's on their web you'll know .. Luna battery should be really safe bc it's "potted" and "wireless" for water and vibration protection.. other options are teznic, ebikezil...
by efMX Trials Electric Freeride
Mar 11 2020 3:46pm
Forum: Resources & EV Related Parts and Services
Topic: REVX Manufacturer Info Questions and Answers
Replies: 19
Views: 1125

Re: REVX Manufacturer Info Questions and Answers

EmotionBikes Brno loved the bike so much..
riding it like they stole it! (opps;)
by efMX Trials Electric Freeride
Mar 11 2020 1:52pm
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 4568
Views: 473796

Re: Sur-Ron - New Mid drive Bike

Segway (surron;) electric dirt bikes have arrived in the usa and will be available from authorized bike shops and Segway dealers.. example : maddogcycles.com

(initiate ubiquitous usa e-mobility project:)
by efMX Trials Electric Freeride
Mar 11 2020 12:12pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Cleveland CycleWerks USA Falcon electric motorcycle moped
Replies: 3
Views: 434

Cleveland CycleWerks USA Falcon electric motorcycle moped

Cleveland CycleWerks USA World Premier of Project Falcon electric motorcycle , moped.. 03-20-2020 #FalconRising .. https://mcusercontent.com/43905168334a80a654b9db542/_compresseds/677d26f5-3dc5-4170-b418-c0754af510cf.jpeg BIKE - MOPED - MOTORCYCLE : "The Falcon’s 2-piece bottom bracket allows us to ...
by efMX Trials Electric Freeride
Mar 11 2020 9:56am
Forum: Motor Technology
Topic: Hunstable HET Electric turbine
Replies: 10
Views: 624

Re: Hunstable HET Electric turbine

here's a look at some of the Hunstable electric motor designs and patent filings..
https://patents.google.com/?inventor=Hunstable
by efMX Trials Electric Freeride
Mar 09 2020 7:40pm
Forum: E-Bike General Discussion
Topic: Need to source another full susp.
Replies: 21
Views: 502

Re: Need to source another full susp.

for a bso the single pivot genesis will have the advantage of less pivots to wear out or flex .. looking at the pics both bso look like very short travel suspension with no damping and a straight 1&1/8 steerer fork with a thread less headset..
by efMX Trials Electric Freeride
Mar 09 2020 6:56pm
Forum: Resources & EV Related Parts and Services
Topic: REVX Manufacturer Info Questions and Answers
Replies: 19
Views: 1125

Re: REVX Manufacturer Info Questions and Answers

if you drop surron the foot peg mounts break, if you jump surron the linkage breaks.. :P https://scontent.fric1-1.fna.fbcdn.net/v/t1.0-9/fr/cp0/e15/q65/89532069_813183382502238_99122828669878272_o.jpg?_nc_cat=100&_nc_sid=2d5d41&efg=eyJpIjoidCJ9&_nc_ohc=Mw7q8u7qs48AX9u23Q-&_nc_ht=scontent.fric1-1.fna...
by efMX Trials Electric Freeride
Mar 09 2020 3:26pm
Forum: E-Bike General Discussion
Topic: Need to source another full susp.
Replies: 21
Views: 502

Re: Need to source another full susp.

if you look closely at the bike frame headtube, you can tell if it's a tapered frame bc the headtube will be more cone shaped instead of a straight tube..
by efMX Trials Electric Freeride
Mar 09 2020 1:28pm
Forum: E-Bike General Discussion
Topic: Need to source another full susp.
Replies: 21
Views: 502

Re: Need to source another full susp.

older forks are straight steerer, newer are tapered.. some straight forks are still available: used, old stuff.. some budget forks like dnm are available with straight steerer, then you use a headset adapter for a tapered frame..