MTB set up process with DFPM?

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stefun
Posts: 19
Joined: Thu Jun 27, 2013 11:37 am

MTB set up process with DFPM?

Post by stefun » Sun Dec 17, 2017 2:05 pm

Hello,

I intend to use my newton 5.15 on an MTB 29".

To calibrate it in second profile, I would perform an O&B calibration, with a DFPM (P1 dual legs).

1) Could I assess the CRR of MTB tires with the "check calibration against DFPM" process?

2) Could the process of out and back calibration be done on asphalt road, and then this calibration would be valid to use the newton accuretaly on forest and mountain tracks? Maybe it could be good enough, if the DCRR soft make its job?
Or is it better to achieve the O&B calibration on a track?

3) Is the dual mount good enough to use the newton on a MTB?

Many Thanks

Stephane

Velocomp
Velocomp CEO
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Joined: Fri Jan 11, 2008 9:43 am

Re: MTB set up process with DFPM?

Post by Velocomp » Sun Dec 17, 2017 4:04 pm

1) probably not, but please post a ride file and I will see if I can help you.

2) yes, your calibration process is fine

3) Yes, most certainly
John Hamann

stefun
Posts: 19
Joined: Thu Jun 27, 2013 11:37 am

Re: MTB set up process with DFPM?

Post by stefun » Sun Dec 17, 2017 4:17 pm

Thanks for the quick reply.

First, I'll order an additional dual mount (7 days for delivery from an european dealer), then I'll achieve the O&B calibration and send you a file.

Kind regards

Stephane

stefun
Posts: 19
Joined: Thu Jun 27, 2013 11:37 am

Re: MTB set up process with DFPM?

Post by stefun » Sat Jan 13, 2018 2:43 pm

initial MTB profile 2.ibp
(377 Bytes) Downloaded 79 times
Hello John
I bought in december a solo front mount (really good), and did a test and calibration today, with a calibrated DFPM (dual P1).
My MTB is a scott spark RC 900 pro 2018, 29"
Tyres: tubeless (Hutchinson taipan front, cobra rear), pressure 2.2 bar. Full suspension.

Could you help me set up my profile. (height: 187 cm, weight: 77 kg, bicycle weight: 11,4 kg). There is a huge difference between newton and DFPM. Maybe it could come from Tyres CRR and CDA
In attachment: My Profile, the CAL RIDE and a little ride.
Before the cal ride I performed 15 min of ride to self calibrated the newton (FW 5.18).
Cal ride were done on good asphalt, with ideal weather conditions (no wind), and no traffic. suspensions were locked up (rear and front)
Ride after the cal ride were done on asphalt and tracks:
Lap 1: track, except first 320 meters, on good asphalt.
Lap 2: good asphalt
Lap 3: Track
Lap 4: good asphalt
Lap 5: Track
Lap 6: good asphalt
Many Thanks for your help.
Attachments
CAL RIDE MTB loubière_01_13_2018_1712_5_km_CalRide.ibr
(51.85 KiB) Downloaded 70 times
dialed in MTB profile 2.ibp
(368 Bytes) Downloaded 67 times

stefun
Posts: 19
Joined: Thu Jun 27, 2013 11:37 am

Re: MTB set up process with DFPM?

Post by stefun » Sat Jan 13, 2018 2:45 pm

And here the profiles:
Attachments
dialed in MTB profile 2.ibp
(368 Bytes) Downloaded 62 times
initial MTB profile 2.ibp
(377 Bytes) Downloaded 61 times

Velocomp
Velocomp CEO
Posts: 5208
Joined: Fri Jan 11, 2008 9:43 am

Re: MTB set up process with DFPM?

Post by Velocomp » Sun Jan 14, 2018 7:36 am

Please post ride files made after your calibrations.
John Hamann

stefun
Posts: 19
Joined: Thu Jun 27, 2013 11:37 am

Re: MTB set up process with DFPM?

Post by stefun » Sun Jan 14, 2018 4:37 pm

sorry,
here we go.
Attachments
MTB loubière st jean de cros poubelles_01_13_2018_1725_7_km.ibr
(117.72 KiB) Downloaded 65 times

Velocomp
Velocomp CEO
Posts: 5208
Joined: Fri Jan 11, 2008 9:43 am

Re: MTB set up process with DFPM?

Post by Velocomp » Mon Jan 15, 2018 6:38 am

Your Crr is too low. It should be around 0.0153

Use the attached profile and you will get better results.
Attachments
MTB.ibp
(456 Bytes) Downloaded 73 times
John Hamann

stefun
Posts: 19
Joined: Thu Jun 27, 2013 11:37 am

Re: MTB set up process with DFPM?

Post by stefun » Mon Jan 15, 2018 5:20 pm

Thanks you very much John.
I will try it soon.
Best regards

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