Specialized Turbo Vado/Como/Tero/Tero X User Club

[TS25]

...the movement of the thudbuster, in compression it moves down and back. The down would be fine, the back could have the effect of stretching the spine, especially if the muscles get tired.

And that's the advantage of the Kinekt, no or at least only little movement front-back in compression work.

Another reported negative point of the Thudbusters is that it doesn't work the same at lower temperatures. And the elastomers have more wear. Maybe you need to exchange the elastomer.

Isn't there a revised Thudbuster model out now in the market?

 

[Marcela]

And that's the advantage of the Kinekt, no or at least only little movement front-back in compression work.

Another reported negative point of the Thudbusters is that it doesn't work the same at lower temperatures. And the elastomers have more wear. Maybe you need to exchange the elastomer.

Isn't there a revised Thudbuster model out now in the market?

The Kinekt articulates the same. The arms are not as long and there is not as much movement. Negative, positive, they're just differences in design and operation.

I just installed the oem seatpost with the spring seat. Forgot how much the Thudbuster moves the seat back. Will go on a ride today and determine if this is the culprit. In the little riding so far it feels better.

 

[TS25]

... and there is not as much movement. Negative, positive, they're just differences in design and operation.

Can't imagine anything positive in moving front-back on the seat whilst riding a bicycle.
At least this isn't my preferred riding style, be it with or without a suspension.

 

[Marcela]

Can't imagine anything positive in moving front-back on the seat whilst riding a bicycle.
At least this isn't my preferred riding style, be it with or without a suspension.

Making the point I don’t have to judge good or bad. The ills of the prevalent thought system.

Also just surpassed the 1000 mile mark. No issues, problems, or anything to deride.

I have noticed my miles ridden lately might have crept up, seems the same ride I make shows more miles than what used to show.

Wonder if this is in conjunction with the latest update, and if an update can change the wheel diameter.

My wheel diameter for the Vado 5.0 is showing 86.22. Anybody else report the same or difference?

 

[GuruUno]

Mine was set at 86.22 at delivery, had dealer set it to the correct 89.29 yesterday (2268mm), I see not difference in anything.
Curious as to what, if anything, the offset was, did, created, did not do, or otherwise.

 

[Marcela]

Doing a little math. 86.22 vs. 86.29, the difference in tire revolutions per mile is 734.86 vs. 734.26 respectively. Don't think that amounts to a hill of beans.

My imagination must have been playing on my thoughts of different distance readings, couldn't have been my memory.

 

[Stefan Mikes]

The Electrak 2.0 (29x2") wheel circumference in my Vado is 2550 mm (100.3 in). It fits the GPS precisely. That is exactly the same as a 27.5" x 2.6" wheel of my Giant Trance E+ but the wheel circumference is very wrongly set in my Giant e-bike.

 

[PaD]

The Electrak 2.0 (29x2") wheel circumference in my Vado is 2550 mm (100.3 in). It fits the GPS precisely. That is exactly the same as a 27.5" x 2.6" wheel of my Giant Trance E+ but the wheel circumference is very wrongly set in my Giant e-bike.

Are you sure it’s 2550?
That would be more like a 32” than a 29”.

 

[Sierratim]

Wheel circumference is of course a function of the rim diameter, the tire size, and thread design. Measuring your specific combo is the most reliable approach, but there are a couple of references I use;

Schwalbe Tire Circumference Table This table lists the circumference of a 47-622 tire as 2250mm. I use this for my Vado with the OEM Trigger Sport of new Schwalbe Marathon GT Tour tires as the tread designs are not aggressive for either tire. They are both 47-622 tires.

Ride With GPS Wheel Circumference Setting This table suggests 2224mm for 44-622 tires and 2293mm for 50-622 tires. This would extrapolate to 2258.5mm for a 47-622 tire, in good agreement with the Schwalbe chart.

 

[Marcela]

I went out and measured the oem tire on my Vado 5.0 and pretty close to 28.5 dia. (wonder if that changes with psi and load). Multiplied by 3.1416 = 89.54" circumference, so the 86.22 might be off a little.

2250mm would be 88.5" circumference.

 

[Sierratim]

I went out and measured the oem tire on my Vado 5.0 and pretty close to 28.5 dia. (wonder if that changes with psi and load). Multiplied by 3.1416 = 89.54" circumference, so the 86.22 might be off a little.

To get a more accurate measurement it's recommended to put a chalk mark on the tire sidewall. Rotate the tire until this chalk mark is at the pavement. Make a chalk mark on the pavement that lines up with the mark on the tire sidewall then sitting on the bike roll forward until the tire chalk mark is again at the pavement. Mark this point and measure the distance between the 2 pavement marks.

You can also take a fabric/flexible tape and wrap it around the tire to get a pretty good measurement. This approach ignores the flattening of the tire with rider weight but does take into account irregularities in the tread, etc .

 

[Marcela]

Pulled out the Garmin GPS. My 86.22 is within .1 to exact at low teens, in the mid 20 mph's it is within .5 mph or the neighborhood. Seems the spread increases as speed increases, but still pretty close.

 

[Stefan Mikes]

Are you sure it’s 2550?
That would be more like a 32” than a 29”.

2250, of course

 

[Marcela]

I have a bike path next to my place with mile and 1/2 mile markers. Did a test run both ways to cancel any wind effects. With the 86.22 I came up short at the 1/2 mile marker by 50-70 ft., at the mile marker it appeared to be twice the distance. So the 86.22 is a little short. Something like the 2250 or 88.5" might be more the order. I'll be motoring by the lbs to make an adjustment and report back another day.

 

[GuruUno]

I used the specifications as per my research and used the numbers as shown in the screenshot.

 

[Sierratim]

Pulled out the Garmin GPS. My 86.22 is within .1 to exact at low teens, in the mid 20 mph's it is within .5 mph or the neighborhood. Seems the spread increases as speed increases, but still pretty close.

It's certainly up to you but I trust the figures published by Schwalbe and Ride My GPS (2250mm, 88.6inches) more than I trust the wheel circumference implied by the GPS service we all use in our electronics. It is only ~3% variance bit that's certainly within the error band of the GPS processing we all get from our electronics. The Government's page on GPS accuracy provides a good over view but the bottom line is that a ruler beats GPS for distance measurements...

Edit - @Marcela , I just saw your latest post. Looks like we are in agreement.

 

[PaD]

My 2020 Vado 5.0 was delivered with 622-47 tires. Wheel circumference was set to 2293 because nobody at Specialized bothered about this little detail when the Vado 5.0 got 47mm Trigger tires instead od the Electrak on previous 5.0.
Not a big thing perhaps and in a way understandable but when people report all kinds of numbers for wheel circumference it gets more interesting.
How are these figures entered in the first place?

 

[Marcela]

My 2020 Vado 5.0 was delivered with 622-47 tires. Wheel circumference was set to 2293 because nobody at Specialized bothered about this little detail when the Vado 5.0 got 47mm Trigger tires instead od the Electrak on previous 5.0.
Not a big thing perhaps and in a way understandable but when people report all kinds of numbers for wheel circumference it gets more interesting.
How are these figures entered in the first place?

I can invision a monkey on the assembly line, pushing buttons on a keyboard as the bikes go by......

 

[PaD]

I can invision a monkey on the assembly line, pushing buttons on a keyboard as the bikes go by......

Or someone brought their kid with programming interest to the office. Left unattended this talented child enters a random generating instruction in the code
Maybe we could see a pattern for these different numbers that owners report if we study bike models and standard tires. I’m still a bit confused but that’s normal

 

[Sierratim]

Or someone brought their kid with programming interest to the office. Left unattended this talented child enters a random generating instruction in the code
Maybe we could see a pattern for these different numbers that owners report if we study bike models and standard tires. I’m still a bit confused but that’s normal

I think it's the monkey. My wife and I bought our Vados at the same time but took delivery maybe 10 days apart, plenty of time for some 'monkey business'! The tire circumferences were not even close to each other, nor reality.