Search found 226 matches

by Lemlux
Nov 18 2016 5:03pm
Forum: E-Bike Non-hub Motor Drives
Topic: Please list all Chainrings that easily work with BBSHD
Replies: 10
Views: 2148

Re: Please list all Chainrings that easily work with BBSHD

Tomajasz:

Would you please explain the benefit(s) of using a Connex eBike chain or provide links for the unknowledgeable like me.
by Lemlux
Nov 18 2016 11:55am
Forum: E-Bike Non-hub Motor Drives
Topic: Please list all Chainrings that easily work with BBSHD
Replies: 10
Views: 2148

Re: Please list all Chainrings that easily work with BBSHD

I bought Lunacycle's 130 bcd spider to allow me to use commercially available 130 bcd chainrings to drive my 29er bike. I started by using Suggino 38T and 40T chainrings on a 9-speed 11-34 cassette with the 34T inner sprocket unavailable due to chainline issues. I wanted to utilize the 100 to 150 rp...
by Lemlux
Apr 29 2013 2:27pm
Forum: E-Bike General Discussion
Topic: 49 xml-u emitter water cooled bike light
Replies: 3
Views: 528

Re: 49 xml-u emitter water cooled bike light

No argument with your comments, BowlofSalad. I'm just easily amused when I encounter guys with the apparent mantra: "anything worth doing is worth doing to excess!" edit: No offense intended toward LFP - just the opposite. I'm truly impressed by Luke's projects which focus on testing and extending t...
by Lemlux
Apr 29 2013 1:59pm
Forum: E-Bike General Discussion
Topic: 49 xml-u emitter water cooled bike light
Replies: 3
Views: 528

49 xml-u emitter water cooled bike light

Thought you guys might be interested in one guy's project which he claims to be able to run continuously at 350 watts. Next time Luke travels to Germany he might want to collaborate on an over-the-top night rider with this guy. http://www.candlepowerforums.com/vb/showthread.php?344877-49-XM-L-U2-40-...
by Lemlux
Apr 04 2013 11:18am
Forum: E-Bike Build Threads / Photos & Video
Topic: Full Suspension Longtail: 20" 104V HT3525 rear and 29" front
Replies: 25
Views: 7151

Re: Full Suspension Longtail: 20" 104V HT3525 rear and 29" f

High Voltage because I weigh 275 pounds and the bike (with batteries) weighs about 110 to 120 pounds before cargo and/or hooking up my BOB trailer. I use the HT3525 in a 20" wheel to minimize the risk of overheating on the SoCal coastal hills where I live that are full of 6% to 12% grades. Veloman i...
by Lemlux
Apr 03 2013 4:03pm
Forum: E-Bike Technical
Topic: Big Battery for ebike!
Replies: 17
Views: 1404

Re: Big Battery for ebike!

16S*2P with a HT3525 in a 20" wheel tops out at only about 17-18 mph on Justin's simulator. I limit the controller to 30 A and top out at about 26 mph. Peak wattage hits about 3.5 kW for veryh short periods and current peaks at around 35A fir very brief periods. My whole target was peak > 35mph with...
by Lemlux
Apr 03 2013 2:38pm
Forum: E-Bike Technical
Topic: Big Battery for ebike!
Replies: 17
Views: 1404

Re: Big Battery for ebike!

"overall width" is a little imprecise a term for my pack which is comprised of 4 separate segments. 3 segments (the two 8-cell groups and the 4-cell group) have a 3-layered lexan balancing board subassembly connected parallel to the long axis of each cell. The 12-cell segment finally placed in the r...
by Lemlux
Apr 03 2013 1:19pm
Forum: E-Bike Technical
Topic: Big Battery for ebike!
Replies: 17
Views: 1404

Re: Big Battery for ebike!

The cells are 132.42mm = 5.21" wide before the additional width of screw heads, bus plates, lugs and terminals which must fit under your plastic cover that will probably be at least .09" thick on each side. I personally use lexan polycarbonate sheet as a cover on my headway packs. How far apart are ...
by Lemlux
Apr 02 2013 9:20pm
Forum: E-Bike Technical
Topic: 2013 Electrical Systems-Close Call & Lessons Learned Thread
Replies: 65
Views: 20076

Re: 2013 Electrical Systems-Close Call & Lessons Learned Thr

megacycle: Thanks for your comments. I think I can summarize by concluding (1) that you don't think that my fused approach is effective, (2) that the greatest potential downside of the polarized breaker I didn't use would be a spike of several hundred or thousand amps to my electronics, and (perhaps...
by Lemlux
Mar 28 2013 9:39pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Dogmans Full Suspension Longtail Frankenbike.
Replies: 91
Views: 39344

Re: Dogmans Full Suspension Longtail Frankenbike.

Your use of the full suspension frame welded with BB shell welded to the front frame rear dropouts nicely avoids the need to fabricate a pivoting axle suspended in a BB and then fastened to the front frame rear dropouts, presumably with nuts. I'm happy to hear that it rides very stably. Interesting ...
by Lemlux
Mar 19 2013 10:01pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Full Suspension Longtail: 20" 104V HT3525 rear and 29" front
Replies: 25
Views: 7151

Re: Full Suspension Longtail: 20" 104V HT3525 rear and 29" f

A year or so ago I bought a Surly Singleater for $10 at a bike swap meet. These are normally used as chain tensioners when screwed into the threaded derailler mount. (They list for about $50 and can be found on line for about $43.) I had planned to mount it on the drive side of the chain but couldn'...
by Lemlux
Mar 18 2013 12:16am
Forum: E-Bike Build Threads / Photos & Video
Topic: Full Suspension Longtail: 20" 104V HT3525 rear and 29" front
Replies: 25
Views: 7151

Re: Full Suspension Longtail: 20" 104V HT3525 rear and 29" f

The kickstand is already the longest 320mm Pletscher size. The Pletscher kickstand specs a max load of 25kg (total bike weight? or weight borne by kickstand? - does anybody know?) I feared that lengthening the legs would increase the stress on the aluminum alloy legs (and there is stress on these le...
by Lemlux
Mar 17 2013 11:33pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Full Suspension Longtail: 20" 104V HT3525 rear and 29" front
Replies: 25
Views: 7151

Re: Full Suspension Longtail: 20" 104V HT3525 rear and 29" f

No videos yet. I finally executed a couple of improvements I'd been putting off. The original idler pulley on the power side was an untoothed guide. It was as chewed up as shown at about 1500 miles. Old Idler Pulley Guide.jpg I noticed that Utah Trikes advises that untoothed guides be used only on t...
by Lemlux
Mar 12 2013 10:57pm
Forum: E-Bike General Discussion
Topic: Ultra flexible cable bigger than 8 AWG
Replies: 24
Views: 2899

Re: Ultra flexible cable bigger than 8 AWG

I've been satisfied with the 4 Ga wire purchased from this linked Solar Power generation firm that costs only $0.99 per foot. Vendor swears that the strands are copper. Sheath is thick and very soft/supple. Some reviewers suggest that the strands may be closer to 5 Ga than 4 Ga. My battery is in 4 s...
by Lemlux
Mar 12 2013 8:13am
Forum: E-Bike Technical
Topic: 18FET 84-132V Infineon controller from Lyen - poor quality
Replies: 24
Views: 3896

Re: 18FET 84-132V Infineon controller from Lyen - poor quali

I should mention that ebikessf.com described my controller as a Rev B 70V-150V Lyen 18 4115 FET Controller. I gather that Lyen has multiple versions of each basic configuration. Accordingly, Ilia was unable to answer my question as to whether a 24S LifePO4 spare battery would function in a low SOC c...
by Lemlux
Feb 28 2013 12:10am
Forum: E-Bike Technical
Topic: 2013 Electrical Systems-Close Call & Lessons Learned Thread
Replies: 65
Views: 20076

Re: 2013 Electrical Systems-Close Call & Lessons Learned Thr

I've installed a 50A fuse in-line for my 104V 15AH 32S Headway battery system. Prior to buying the fuse I purchased a 125 V max DC 50A circuit breaker which trips immediately at 65A from a solar power / wind power supply house. Before I installed the circuit breaker I noticed its cautionary label st...
by Lemlux
Feb 27 2013 8:51pm
Forum: Items for Sale - New
Topic: Doc's ULTIMATE TORQUE ARMS fit most of the frame UPDATE 2013
Replies: 583
Views: 100563

Re: Doc's ULTIMATE TORQUE ARMS fit most of the frame UPDATE

For those with electrOn's undersize axle flat issues is/are there (a) hard shim/s available to fill the gap successfully?
by Lemlux
Feb 25 2013 11:57pm
Forum: E-Bike Reviews & Testing
Topic: Predeco Outlaw SS
Replies: 86
Views: 14447

Re: Predeco Outlaw SS

fwiw, R Stevens posted a couple of times in 2011 about his frustrations in getting delivery from Prodeco before he received his bike. I'm not convinced that labeling him a shill (sp?) is accurate. I've been watching SDelectric bikes build up their Prodeco inventory. They're impressive looking bikes ...
by Lemlux
Feb 25 2013 12:20pm
Forum: E-Bike General Discussion
Topic: is this an ebay scam ?
Replies: 6
Views: 914

Re: is this an ebay scam ?

Would you really consider paying more than a couple of dollars to a vendor on his first ebay transaction?

It's bad enough being burned by someone with multiple transactions and a 97%+ positive rating.
by Lemlux
Feb 22 2013 11:32pm
Forum: E-Bike Reviews & Testing
Topic: New Prodeco X2 owner feedback
Replies: 81
Views: 17325

Re: New Prodeco X2 owner feedback

San Diego Electric Bike has moved this year from a garage shop to a stand-alone building on coastal highway 101 in Solana Beach, Ca. They are now pushing Prodeco as their primary prebuilt bike. Pat Winston, the founder and now the store manager is a good guy and might be able to shame his supplier i...
by Lemlux
Feb 19 2013 2:43pm
Forum: Battery Technology
Topic: Elite Power batteries
Replies: 46
Views: 4830

Re: Elite Power batteries

I run 32S Headway 15 Ah at nominal 104V. I charge the battery in two 16S groups. Each group is charged using an Elite 6A charger. I purchased 32 of the "bleeder" balancers from Elite and sandwiched them into 3 lexan layers. The top of these 3 layers allows access to brass bolts that go through balan...
by Lemlux
Feb 15 2013 2:02pm
Forum: E-Bike Technical
Topic: tire replacement options
Replies: 18
Views: 2067

Re: tire replacement options

Itchynakers: Agree that Armadillo crossroads are about the toughest tires I've used. It took my wife and me about 4-5 years to wear out our first sets. (Wear out is not totally accurate in that two of the 4 tires showed more signs of dry-rot than of wear.) I've since moved to wider tires front and r...
by Lemlux
Feb 15 2013 1:49pm
Forum: E-Bike Build Threads / Photos & Video
Topic: My first e-build: Electra Townie with MAC 8T hub and QR LiPo
Replies: 22
Views: 2857

Re: My first e-build: Electra Townie with MAC 8T hub and QR

Chalo: Appreciate the methodology validation of ION82's suggestion, the observation that smaller width donor liner tire is not problematic, and the recommendation that donor liner tire should be as close to a slick as possible.
by Lemlux
Feb 15 2013 9:00am
Forum: E-Bike Technical
Topic: 18FET 84-132V Infineon controller from Lyen - poor quality
Replies: 24
Views: 3896

Re: 18FET 84-132V Infineon controller from Lyen - poor quali

My 18 x 4115 Lyen controller was shipped to me as part of an assembled kit from Ilia Brouk at ebikes SF last September. It now has about 2,000 miles on it and works incredibly smoothly at 104V. I'm amazed that the low end throttle control is so precise: for example, I can maneuver the bike as slowly...