Speedo correction

[outerlimits]

So my Speedo on the app reads about 2kmh higher than my Garmin.
Wheel dia is 2250

Which way should I adjust it to bring it in line?

 

[ccrdave]

according to sheldon brown
27.5 fitted with a 3inch tyre = 2313.47mm circumference
27.5 fitted with a 2.75inch tyre = 2273.57m circumference

 

[outerlimits]

according to sheldon brown
27.5 fitted with a 3inch tyre = 2313.47mm circumference
27.5 fitted with a 2.75inch tyre = 2273.57m circumference

Thanks for that. Gives me a starting point close as I got 2.8’s

 

[ccrdave]

me too, I set mine at 2275 problem I found is difference in size between 2.8 tyres so for me a good guess is good enough

 

[outerlimits]

me too, I set mine at 2275 problem I found is difference in size between 2.8 tyres so for me a good guess is good enough

Going by the above I worked out it should be 2281mm
Will be a case of checking and adjusting to suit

 

[caterhamnut]

ah, so this would explain why my Strava feed that comes from the mission control reads, say 19miles, where as the Strava data that comes from my phone all will read, for example, 24 miles, for the same ride/

 

[Doomanic]

My Strava reads lower than my Intuvia but it reads higher than my mate's Garmin.

 

[outerlimits]

I have tried lots of different settings of late and nothing seems to make a difference to speed or distance traveld.

 

[kcarbon]

I will have to adjust mine , as I went from the 27.5 x 2.8" butcher to 27.5 x 3.0" same as 2017 fatty's use. main reason I changed is, I had a 2017 fatty levo HT. I noticed that rolled a lot better. I also road a 2017 expert that had the 27.5 x 3.0. & I could notice it rolled like my old fatty HT levo. only thing I notice with the 27.5 x 3.0" set at 12psi F 15psi R ( tubeless ) is it I'm on a paved path and I ride off path over grass, steering feels strange ( very hard to explain ) but I'm used to it. I go around corners on paved surface at up to 60kph ( down hill ) via my Garmin 520 and bike handles well (tight corners )

 

[outerlimits]

I will have to adjust mine , as I went from the 27.5 x 2.8" butcher to 27.5 x 3.0" same as 2017 fatty's use. main reason I changed is, I had a 2017 fatty levo HT. I noticed that rolled a lot better. I also road a 2017 expert that had the 27.5 x 3.0. & I could notice it rolled like my old fatty HT levo. only thing I notice with the 27.5 x 3.0" set at 12psi F 15psi R ( tubeless ) is it I'm on a paved path and I ride off path over grass, steering feels strange ( very hard to explain ) but I'm used to it. I go around corners on paved surface at up to 60kph ( down hill ) via my Garmin 520 and bike handles well (tight corners )

Yeah the rolling diameter of the 3.0 is greater so it will roll slightly better. As for steering strange in grass, it may be due to the wide tyres giving more resistance.
I have had my Levo up to 89kmh and it felt solid and safe. My old enduro bike with 2.3 tyres felt shakey at 70kmh

 

[kcarbon]

wow good speed! must be a big hill?

 

[Rob Rides EMTB]

Yeah the rolling diameter of the 3.0 is greater so it will roll slightly better. As for steering strange in grass, it may be due to the wide tyres giving more resistance.
I have had my Levo up to 89kmh and it felt solid and safe. My old enduro bike with 2.3 tyres felt shakey at 70kmh

89KMh

 

[kcarbon]

89KMh

Thank's Rob, I'll have to check speed we hit down hill tomorrow as it's a fast run. might see if I can get mission control to check speed as have to keep eye out for cars on this section. what do you use to check speed?

 

[outerlimits]

Thank's Rob, I'll have to check speed we hit down hill tomorrow as it's a fast run. might see if I can get mission control to check speed as have to keep eye out for cars on this section. what do you use to check speed?

I use Cops to check my speed.... On the Levo they got no chance LOL

 

[kcarbon]

I use Cops to check my speed.... On the Levo they got no chance LOL

Ha Ha, I got to 78kph via Garmin 520 just this morning was tar and twisty downhill, only saw one truck coming opp way felt easy did not use brake at all.