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  1. FFR Trikes

    New 12s3p packs, 44V 15Ah, Samsung 50E 2170 cells $375 ea (15 available)

    Reduced to $375 each, I’m eager to get these sold. Also, I’m willing to cut a deal for anyone that wants to buy multiple packs. Thanks! Tommy
  2. FFR Trikes

    New 12s3p packs, 44V 15Ah, Samsung 50E 2170 cells $375 ea (15 available)

    Hello everyone, I’m selling some brand new, never used Samsung 50E 2170 packs. These are high quality packs, sealed with 30A BMS. Dimensions are roughly 11” x 3.5 x 3, 6.5 lbs, 665 watt hours, $375 ea These were built for our custom recumbent electric bike builds, but then we changed the...
  3. FFR Trikes

    ELECTRIC TRANSMISSION DELTA /WYE and SERIE/PAPALLEL stator

    Hi Arlo, I ask because I took interest in the subject when Doctorbass first posted in 2009, and we did a lot of testing and found it to be very useful, especially on sensorless systems. We see more torque and efficiency in Wye, and of course much more speed in Delta. We spent a whole lot of...
  4. FFR Trikes

    ELECTRIC TRANSMISSION DELTA /WYE and SERIE/PAPALLEL stator

    Back from the DEAD! Is anyone still working on the Delta/Wye switching? Tommy
  5. FFR Trikes

    FFR Trikes wins Pike's Peak 1st and 2nd places!!!

    Here's a highlight reel from the hill climb with our trikes. A full uncut video will follow. bS6JVhX0d8c
  6. FFR Trikes

    FFR Trikes wins Pike's Peak 1st and 2nd places!!!

    Thanks for all the awesome support guys! It certainly wouldn't have been possible without all we've learned from the ES forum. Since there was no official timing, we're doing our best to round up timing of the finishers. Here's what we have so far: Place|Rider|Team|Time|Average...
  7. FFR Trikes

    How do I get proper tension in a Recumpense V4 drive?

    One easy technique that works great is the "pinch technique": (excuse the dirty drive) Place your pointer finger on the curved indentation on the front of the drive, and your thumb on the pulley. Pinch very firmly, on the edge of bulging veins firm. Tighten screws while pinching. The...
  8. FFR Trikes

    RC Controllers with RC Motors

    MattyCiii, We're currently stocking the Version 2.24 Beta4 units. They're the latest V2 units. We'll begin stocking the V3 units for folks when they've been debugged, we'll likely get a few early units soon for folks that want to be part of the beta testing process. The V3 units will have...
  9. FFR Trikes

    RC Controllers with RC Motors

    If you're going to go with a Cycle Analyst for data readout anyway, the CA-LRC is a great unit that combines the functionality of the CA, servo tester, and BEC all into one unit and allows for full control of power output, startup speed, and few other features at a very reasonable price. Grin...
  10. FFR Trikes

    Planetary drive IN the crank gear??!!

    The Schlumpf HSD is hard to beat if you're looking for a nice low gear, and a very tall high gear at 1:1 and 2.5:1. If you don't need as tall of a high gear, the ATS Speed drive was also designed by Florian at Schlumpf, and is a good bit more affordable with a 1:1 low, and a 1:1.65 high. With...
  11. FFR Trikes

    Astro Motor Efficiency

    Green Machine, At the moment Astro is in the process of beginning full efficiency testing a few of their best-selling motors. We're expecting results back in the next couple of months. I believe Matt still has an older dyno sheet from when Bob was in charge at Astro, I believe it was for a...
  12. FFR Trikes

    Sustainable Vehicle

    I'm very excited to see this build unfold! Amberwolf is right on with charging. If you're just looking for an at-home unit, the Mastech HY5020E lab supply is a nice pick, and is somewhat portable, you can also likely find more affordable units used. For high power charging that's portable...
  13. FFR Trikes

    Beta CA build for R/C controllers

    That's great news, Justin. Thanks again for your continued work on supporting these applications. We'll be soon placing an order and we'd be happy to share feedback on the new software as we get a couple trikes running on it. It's awesome to imagine all the possibilities for the new inputs...
  14. FFR Trikes

    Disposing of LiPo

    Batteries Plus accepts them for free. Looks like there's six locations in Houston: http://www.batteriesplus.com/store_locator/state/TX.aspx -Tommy
  15. FFR Trikes

    Mount Mitchell Hillclimb (Astro-Powered)

    Hey Kudos, It's an application called Dashware, it uses the GPS data from the Contour GPS helmetcams, and allows you to format it in a dashboard however you'd like. It's downloadable from dashware.net, it's designed for Windows. It's some pretty nice software! -Tommy
  16. FFR Trikes

    Mount Mitchell Hillclimb (Astro-Powered)

    Hey guys, I've always had a thing for hillclimbs, and last week we finally got the time to head up to Mount Mitchell (the highest peak east of the Mississippi), to see how our Transition 311 would do on the hill. The trike is powered with a single Astro 3215, 12S, 25Ah Lithium Polymer, and...
  17. FFR Trikes

    Astro Flight motor comparison

    Very cool! Glad we could help. -Tommy
  18. FFR Trikes

    Astro Flight motor comparison

    Shark, Running a single Astro will almost always be more efficient than twins. This is mainly due to losses from an extra controller, extra motor, and losses through the extra synchro belt. We've been working with Matt over the last couple years and we've found that a kV between 110-180...
  19. FFR Trikes

    Tommy and Jesse Do America (trip thread)

    With BB-drives and mid-drives, whether the gearing is accomplished through derailleurs, or IGH's, chain integrity and IGH integrity become a major issue as those systems are becoming severely overloaded. That's mainly because this machine is a tandem, and the total weight gets pushed into...
  20. FFR Trikes

    Tommy and Jesse Do America (trip thread)

    There will we some serious drivetrains upgrades with the rebuild. We'll be working over the next few months to get the funds together for the revamped model. Here are a few of the major upgrades we'll be looking at: 1. Upgrading from 3 kWh (81 lbs) Thundersky to 4.4 kWh (59 lbs) of Dow...
  21. FFR Trikes

    Learning about RC Motors and striving for quietness.

    Nice video, Kurt! What controller are you using for 15s? -Tommy
  22. FFR Trikes

    A freewheel sprocket as small as possible

    Ferias, 13t is a nice compromise between minimal noise, affordablity, and chain life. I'm not sure if it'll work with your setup, but we have stainless micro freewheel adapters and 13t Odyssey freewheels in stock here in North Carolina. Link to the store: http://www.ffrtrikes.com/parts...
  23. FFR Trikes

    Industry Nine Precision Wheels- Beautiful

    I posted up in the general forum, but I know there's not always a lot of cross-pollination between the different sections of the site, so I figured I'd share my experiences with with all the non-hubbers over here... I've been eyeing Industry Nine Wheels for a while, they're super light, super...
  24. FFR Trikes

    Industry Nine Precision Wheels- Beautiful

    It's all personal taste I suppose, I love the mellow whirr from the hub, I've seen the inner workings and it's truly phenomenal engineering. But to each his own. FWIW, these newer hubs seem to be much quieter than the older versions, I'll have to ask Clint if they've made a change to the...
  25. FFR Trikes

    Industry Nine Precision Wheels- Beautiful

    They're great wheels. Super solid, so light, and so pretty. One of the guys here at the shop has a set on his Kona 29er and he loves them. Yep, 10%. -Tommy
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