New & Interesting Bike Campenaerts

changing the seat angle is a thing

i’m 99% sure this won’t work but given how good motors and batteries/capacitors have gotten…is it feasible to create an ā€œe-bikeā€ where pedaling charges a capacitor, which feeds a hub motor which drives the bike?

would you lose too much energy to various losses than you would through a normal bike drivetrain, after accounting for the savings listed below?

you could save the weight of all/most of the cassette/dangler(s), chain, chainring. cranks could be lighter because you don’t need to put out a ton of torque all at once. you could set the q factor however you wanted. i assume this would substantially improve suspension dynamics because no chain messing that stuff up. your rear wheel wouldn’t even have to be dished.

i’m also roughly the least capable person on tarck to discuss this idea with any intelligence.

They sort of exist

great i’m a genius

50% energy losses would hurt the cause a BIT though

When keeping it real goes wrong

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g-one speed pro, now in 2.35"

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We have absolutely built that

The recent versions of Shamu have the stoker’s drivetrain totally self-contained, with a crankset driving a short length of chain to a 6-bolt sprocket on a 250W compact ebike hub motor. The ā€œshifterā€ for the stoker is simply a twist throttle to set the wattage of the regenerative braking draw on the motor/generator. It is useful for helping the stoker keep themselves warm more than meaningfully charging the batteries.

The original version of Shamu pictured here has a stoker’s drivetrain of:

  1. Stoker’s Crankset
  2. 3 to 5 lengths of chain with a tensioner for boom length adjustments
  3. 7-speed internal gear hub drive sprocket
  4. Disc cog on the IGH hubshell as a jackshaft
  5. Chain from jackshaft cog to inner chainring on captain’s cranks
  6. Trials freewheel on captain’s driveside crankarm
  7. outer chainring to the rear wheel
  8. Rohloff in the rear wheel

There’s also a trials freewheel on the NDS crankarm too, for a linkage to the kickstand that deploys when the captain pedals backwards

17 Likes

Road morph g. I wanted to like the turno urbo morph g but the larger barrel diameter makes finding a side by side bottle/pump holder difficult and for whatever reason it doesn’t have the extendable hose the road morph g does.

Either way get a G model for the gauge, though I don’t actually know how to read the road morph gauge.

Agreed that the gauge is best. Just kind of an approximate, but makes it so that you don’t need to squish-test your way between 35 and 45 psi.

I have a pair of these that I got years ago (from @Rent-to-own-Faxmachine?) back when they were the ā€œBig Onesā€. They were the tubed version and I think I flatted twice in 4 miles the first time I rode them. Very cool tires but 29x2.35" x 500ish grams is not good for the streets I ride on. Tubeless might work?

I have this one and it works well. Maybe even better because it’s silver ROADIE TT Mini | Topeak

Has this been discussed? $32 in merica dollars
https://www.instagram.com/p/C9il3zNycWH/?igsh=M2ViOWR1bGJ4d3Bi

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Not here but I like the idea. In my small & slammed bikes bar-bags never mount right. I think this would help.

I love that and I’ve been thinking about how to do something that simple for over a year and completely blown away by how perfect that is.

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that’s cool but SQ what are the other options for burrito bag supports right now? I’ve seen a couple posted but can’t place them right now. Don’t need the low-profile jobber lol

Ah answering my own question because the above-linked company makes one of the ones I was thinking of…

it’s a reflector bracket that they didn’t put mounting holes in?

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It would be nice if they said what it’s made of

I agree

so I mined social medias and dug up this for you and only you:

5051 aluminum with a Cerakote finish

image

1 Like