Recent content by mikegrundvig

Alright, some of you are familiar with this and some are not: http://www.powerracingseries.org/ A lot of my friends compete and I'm considering giving it a shot this year. The rules are a little tricky, the total project has to cost less than $500 but that doesnt include the initial power...

I've seen a number of people complain that while it's good, it's still a bit too little gearing to handle all situations so I'd like a pair of gears in the front to give me as much flexibility as possible. I'm going to do a LOT of number crunching though to see where this ends up in practice...

By input capacitors, you guys talking about this? http://www.rcgroups.com/forums/showthread.php?t=952523 The RC-specific Cycle Analyst is dead sexy BTW: http://www.ebikes.ca/store/store_rc.php -Mike

I'm shooting for a "through the bottom bracket" design with a N360 on the rear and a pair of chainrings up front with a tandem chainring on the other side. The motor will be attached to the tandem chainring so I get two gears I can choose from on the front and the N360 on the rear. The goal is...

Actually that was very helpful. Many of the people on this forum are pushing the edge consistently and so you see a great deal of horror stories with things burning up, broken down, etc. It's a bit unnerving when I'm looking for something that is pretty reliable. Thanks! -Mike

Is the consensus that the Phoenix Ice HV 160 is the best speed controller out there for RC builds? I've read a few people talking about burning them up under acceleration. The idea of toasting the second most expensive component in the system so easily scares me a great deal. I know there is all...

Ok, I feel like a moron asking this, but I'm just not getting it... I've read about people using tandem bike cranksets as they get a chainring on each side. The "drive side" is on the right and can still be geared with a motor driving the left side. This makes perfect sense and seems pretty...

Any weekend update? I'm eagerly awaiting the results of your testing. You are a terrible tease with all of these updates. :) -Mike

Thanks again for the response! In addition to the White Industries freewheel, what are you using for the crankset pair of sprokets/freewheel? It's very nice and compact vs. some I've seen on here. Regarding purchasing, what would be included in the whole kit? Thanks! -Mike

Thanks for the info! Care to share what front freewheel configuration you are using in the end? Sorry to ask so many questions but after all my research, I prefer your direction the most and plan on making my bike similar. Thanks again! -Mike

I'm sure you said it already, but what gear ratio are you going with currently? Are you assuming an 80% of peak RPM for the motor or something else? I read why the chain and not a belt but why not go gears on the motor directly to make the entire system gear driven? Finally, how does it sound...

This is a very slick setup. Beautiful work! -Mike

Gah, I assumed the Shimano had the standard splines and could support the twin freewheels. I see instead that it has an odd three lobe thing. I hate how few standards there are in bikes! I REALLY want a solution that gives me a fair number of gears or I'll just end up using the motor constantly...

Thanks Rassy; I've read your threads and learned a good bit. So now I'm more confused than ever... If these adapters are available: http://www.endless-sphere.com/forums/viewtopic.php?f=28&t=17602 Then I believe I can just run two of those together on the rear hub - Nexus or Alfine. Is that...

Those threads were pretty interesting and informative. What is the advantage of the SA over the Shimano? I'm a little confused about why to choose one over the other. -Mike