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lots of versions of this prototyped over the years. https://www.cyclingabout.com/are-chainless-digital-drive-bicycles-the-future-of-cycling/ the issue remains efficiency : for every 100 watts of pedaling you do, a derailleur drivetrain puts about 95 into the wheel. with current and...

i do not think there are any - or certainly not many - geared hub motors without a clutch. the two i have (one bafang one mahle) certainly have clutches, and there is essentially no drag at all at any speed when the motor is not assisting. of course you are spinning around the weight of the...

possibly damaged by the vibrations from your tough ride on rough surfaces. not what specialized expected the full size vado to be used for!

i think that's conservative, given how short the climbs on this ride are, nothing wrong with going 7.5kph at 60rpm for a few minutes at a time. 500 watts is required. cut the bike weight in half and you need 450 watts, but your gearing is so much better that if you can balance, 6kph is...

there's no engineering reason this has to be true, we know that the torque "curve" of an electric motor can be almost anything the controller dictates as long as it's within the limits of heat generation and other bits of the electrical system. there are constant torque electric motors, there...

I think you’ll be fine - although it’s up and down and up and down with what look to be a few very steep spots, no long sustained climbs and less overall than the standard for “hard” which is 100’ per mile around here, or 20 meters per km in your part of the world :)

assuming you’re not going uphill, the vast majority of the energy required to move forward on a bike is to defeat wind resistance. this is why road bikes look the way they do, low in the front, narrow, frame profiles tucked behind the tires, deep wheel profiles, and why serious cyclists wear...

it probably just doesn’t often need to use the full voltage. i believe the SL battery for example is 10S4P, so 42v max, 37v “nominal” and specialized is probably pretty conservative, with “0” likely being at least 30v. voltage has much more to do with speed than anything else, it’s current which...

yes, when brakes are dirty they can squeal! see again what i said - "clean pads and clean rotors, properly bedded, and dry, do not squeal." nothing wrong with getting them dirty and wet, they still work. doesn't mean they're not dirty!

while i'm sure many (even most) hub drives are implemented like this, there are no mechanical reasons which require it to be this way. with a hub drive, the speed of the chainring is directly related to the speed of the rear wheel in any given gear. there are multiple gears available of course...

i have to agree with stefan's brother in some ways, i would not by choice have an SRAM group, but that's not just the brakes, it's the whole design philosophy. some of their components are excellent and i have gotten many miles out of those, for example the excellent x-dome cassettes, matching...

an important point! although we don’t get extreme temperatures here, we do get intense coastal fog that at times reduces visibility on some of my favorite routes to essentially nothing. it’s simply not possible or enjoyable to ride at a slow enough speed to be able to stop if an animal or...

I have often said that I’d never choose to live somewhere where exposure to the weather alone could kill a person! of course there are many ways to prepare for weather extremes, but I prefer to spend my time and energy elsewhere 😶‍🌫️ health issue have put an end to this steady pace, but heres...

yeah, that’s what I’m saying…. that‘s a long reach! I feel like riding a bike that’s too big for you is the new in thing lol.

what width are your rims? seems like some people are putting 20x2.125 tires on their XP lites for city riding with good results. there are tons of tires available in that size - if you’re not riding off road you really don’t need the knobs. get something smoother and roll faster :)

Vado SL is too upright, bars too wide, tires too big, etc etc for the relatively low power motor to give you 28mph. since you have a real road bike you know what the secrets to efficiently going fast are :)

there are size L at many places, specialized santa monica, south bay cycle, etc. what size do you want to ride?

bosch is the exception here, pretty much all the other big players have virtually the same capabilities for the sensors, outputting basic data (cadence, an approximation of power, etc) via ANT+. fazua, mahle, brose, bikes from specialized and santa cruz and scott and giant etc etc. as many of...

Specialized has been around 50 years, through a couple other huge ups and down. while i agree the bike industry is in for rough times they’re reasonably well positioned. Dyson has been fairly successful, and there are certainly similarities. somewhat high end targeted consumer products with...

aluminum creos have carbon forks and carbon seatposts.