Search found 32 matches

by Todj
Mon Apr 11, 2016 6:58 am
Forum: PowerPod
Topic: PP recalibration after shipping bike?
Replies: 2
Views: 2198

Re: PP recalibration after shipping bike?

Thanks John. That's great :-)
by Todj
Mon Apr 11, 2016 6:24 am
Forum: PowerPod
Topic: PP recalibration after shipping bike?
Replies: 2
Views: 2198

PP recalibration after shipping bike?

I'll be stripping the bike soon, in preparation for some aircraft travel. When reassembling I'm sure that, despite my best efforts, the handlebars won't be in exactly the same position as previously and they might be a degree or so out. Question......do I need to re-calibrate the PP (and if so, how ...
by Todj
Fri Mar 25, 2016 10:36 am
Forum: PowerPod
Topic: Wireless ID query
Replies: 16
Views: 8517

Re: Wireless ID query

Hi John, UK temperatures a lot better now :) However, the PP definitely isn't any better :( Here's the file from today's ride. PP started up fine. Single click, flashing green, solid green....off we go. It output power figures for 15 minutes and then stopped. On this occasion, rather than hard-reset...
by Todj
Wed Mar 23, 2016 7:03 pm
Forum: PowerPod
Topic: Wireless ID query
Replies: 16
Views: 8517

Re: Wireless ID query

Thanks John. I did wonder if it might be rapid temperature drop causing the problem? My Garmin (which had sat on the office desk next to the PP all night) showed a start temperature of 59 degrees F. During the ride it dropped quickly down to 39 F. As the PP was stable for the rest of the day once it...
by Todj
Wed Mar 23, 2016 4:06 pm
Forum: PowerPod
Topic: Wireless ID query
Replies: 16
Views: 8517

Re: Wireless ID query

I have not seen this problem reported by anyone else. When the PP stops working, what happens when you click its button (before doing a hard reset)? Does the light turn on? If so, what color? Nothing. Tried doing a single click as a simple wake up. No response. Tried doing a four-second hold. No re...
by Todj
Wed Mar 23, 2016 2:24 pm
Forum: PowerPod
Topic: Wireless ID query
Replies: 16
Views: 8517

Re: Wireless ID query

Thanks John, The battery is fully charged. Yes....I expect it to go to sleep (20 mins of inactivity?) so I know to wake it up with a single click after spinning the wheel and the cranks. The underlying issue is that I have no option but to do the hard-reset after between 10 and 40 minutes as it stop...
by Todj
Wed Mar 23, 2016 11:11 am
Forum: PowerPod
Topic: Wireless ID query
Replies: 16
Views: 8517

Re: Wireless ID query

Hi John, Thank you for the patches sent through at the weekend. Very much appreciated. That has cured the issues of the wireless IDs for cadence + HR, and partially solved the ride-length problem. However, my rides over the past few days have brought the following result:- 1) Start up the PP with a ...
by Todj
Sat Mar 19, 2016 11:33 am
Forum: PowerPod
Topic: Wireless ID query
Replies: 16
Views: 8517

Re: Wireless ID query

For information, also attached is the Garmin output from that same ride. It can be seen that the PP was outputting power figures for several miles, but none of these were recorded.
by Todj
Sat Mar 19, 2016 11:18 am
Forum: PowerPod
Topic: Wireless ID query
Replies: 16
Views: 8517

Re: Wireless ID query

Hi John,
Speed sensor is already on the front hub.
Ride file attached from this morning. :)
by Todj
Sat Mar 19, 2016 10:24 am
Forum: PowerPod
Topic: Wireless ID query
Replies: 16
Views: 8517

Re: Wireless ID query

Thanks John, Should the PP also pair with a cadence sensor and a hear-rate sensor, similarly to the speed sensor, or does it just look for a speed sensor? I know that my cadence and HR sensors are awake before perform the PP pairing function, as I have checked that my Garmin can see them, but those ...
by Todj
Fri Mar 18, 2016 11:45 am
Forum: PowerPod
Topic: Wireless ID query
Replies: 16
Views: 8517

Wireless ID query

I have acquired a set of the new Garmin 'magnetless' sensors. Pairing the separate speed and cadence sensors with my Garmin head unit I can see that the IDs are 635932 (speed) and 635018 (cadence). Initially, I did try to enter these IDs manually using Isaac, but it wouldn't retain the six digit num...
by Todj
Thu Sep 22, 2011 1:33 pm
Forum: iSport
Topic: A lot of questions and picture request on Ibike power meter
Replies: 11
Views: 17068

Re: A lot of questions and picture request on Ibike power meter

@Bike4Him

Very neat. Thanks for posting.

Is it solid enough to avoid the iBike showing any vibration issues?
by Todj
Wed Sep 21, 2011 4:27 pm
Forum: Triathlon and TT Topics
Topic: Struggling with ibike for TTing
Replies: 14
Views: 21165

Re: Struggling with ibike for TTing

@gerrard I'm certainly no expert on profiles and I'm trying learn as much as I can from the gurus. No doubt the experts will be along shortly, but my observations would be:- 1) Wind scaling looks high. You and I look to be about the same size, and on my TT bike I was advised to go to circa 0.700. 2)...
by Todj
Wed Sep 21, 2011 3:42 pm
Forum: Triathlon and TT Topics
Topic: Struggling with ibike for TTing
Replies: 14
Views: 21165

Re: Struggling with ibike for TTing

I must say I agree that there can be some variances using the iBike on a trainer, I tend to see bigger numbers when I use it on a trainer too. I use a CycleOps Fluid 2. We are also creating a software that will be available shortly to help "tweak" your profile. The program will recognize ...
by Todj
Wed Sep 21, 2011 1:22 am
Forum: Frequently Asked Questions
Topic: Another missing watts query
Replies: 9
Views: 7086

Re: Another missing watts query

Thanks Fernando, I will try the adjustments you have suggested.

There are three or four places where I have to coast as the TT route negotiates several roundabouts. The one at 6.2 miles is very small and tight, usually with traffic.
by Todj
Tue Sep 20, 2011 2:14 pm
Forum: Frequently Asked Questions
Topic: Another missing watts query
Replies: 9
Views: 7086

Re: Another missing watts query

Thanks again Fernando. Photos attached. It's a standard low-angle stem mount. It has the green stickies underneath (cut to shape and hence they don't show up against the white stem). Mount is good and solid. The RWS is taped around just to make it look less like a drinking tube. The elastic band is ...
by Todj
Mon Sep 19, 2011 7:16 pm
Forum: Frequently Asked Questions
Topic: Another missing watts query
Replies: 9
Views: 7086

Re: Another missing watts query

Thanks Fernando. That 2c is most useful. :) I am wondering if this might be a 'vibration' issue. Looking closely at a couple of sections where the power drops to zero or thereabouts eg mile 6.7 the slope shows at -5%, whereas on the way outwards, the same spot in the road at mile 5.8 it shows as jus...
by Todj
Sun Sep 18, 2011 1:48 pm
Forum: Frequently Asked Questions
Topic: Another missing watts query
Replies: 9
Views: 7086

Another missing watts query

I'm using my Gen III iPro mainly on my time trial bike in races (it's a stem mount and the RWS out on the right hand brake lever). On the flats and upslopes I'm getting sensible figures, but on down slopes I am beating my brains out and getting very low figures. Attached are three files showing the ...
by Todj
Sat Sep 17, 2011 4:50 am
Forum: Frequently Asked Questions
Topic: Strange Readings
Replies: 2
Views: 3164

Re: Strange Readings

I'm no expert, but I did notice that the Crr on the 30km file shows -0.0130 ie somehow this has been recorded as a negative figure. This has meant that your Rolling Resistance watts are shown as -99, whereas they probably should be about +40. A more likely Crr would be circa 0.0050 Another calibrati...
by Todj
Mon Sep 12, 2011 6:35 pm
Forum: Training with Power
Topic: Nashbar Reduced Radius Rollers
Replies: 11
Views: 19492

Re: Nashbar Reduced Radius Rollers

Used to ride roller racing leagues about 20 years ago. That was on track bikes, so I'd suggest that bike control was possibly a bit easier with fixed wheel. And yes, riding out of the saddle can be done, but you have to get your body lower, with fairly high leg speed and contol the front end to keep...
by Todj
Sat Sep 10, 2011 9:18 am
Forum: Frequently Asked Questions
Topic: what actually is FRIC, help with profile please
Replies: 45
Views: 27969

Re: what actually is FRIC, help with profile please

Geoff, what numbers did you pump into the spreadsheet?

I think I picked up from elsewhere that your Cda is 0.230, and putting in your Crr of 0.0035 and your all-up weight of 82kgs, it calculates 30mph as 376 watts.
by Todj
Fri Sep 09, 2011 3:45 pm
Forum: Frequently Asked Questions
Topic: what actually is FRIC, help with profile please
Replies: 45
Views: 27969

Re: what actually is FRIC, help with profile please

Hi Geoff, You might find the link to this spreadsheet useful. Just put in your Cda,Crr and weight (note: in kgs) and the formulae will give you the theoretical watts:- http://www.demon-cycles.co.uk/files/cda_crr%20v0.01.xls The bottom of the page shows the assumptions used and the credits for where ...
by Todj
Fri Sep 09, 2011 1:18 pm
Forum: Frequently Asked Questions
Topic: what actually is FRIC, help with profile please
Replies: 45
Views: 27969

Re: what actually is FRIC, help with profile please

The only comment I'd make on the profile (hopefully helpful) is that a Crr of 0.0033 seems awfully low to me. You probably have much better road surfaces than we have in the UK, but even on my own TT bike which has Vittoria CX tubulars at 120psi I've struggled to get below 0.0055. With regards to th...
by Todj
Fri Aug 26, 2011 1:26 am
Forum: iSport
Topic: A lot of questions and picture request on Ibike power meter
Replies: 11
Views: 17068

Re: A lot of questions and picture request on Ibike power meter

I did not like the mounted profile of the iBike. For me it sat way too high and way to far forward on the bar. If you mount it on the stem it's even worse. I saw one mounted on the stem with epoxy. Still sat too high and the guy epoxied the mount to a high dollar carbon stem...permanently I created...
by Todj
Sun Aug 21, 2011 1:49 pm
Forum: General Discussion
Topic: Switching profiles issue
Replies: 4
Views: 4013

Re: Switching profiles issue

This is not the way things should be! Please post two ride files: one from your road bike and one from your TT bike. We'll figure out what is going on... Hi John, Two ride files attached. The 37 mile file is a bit of a potter on the road bike (Profile 1), whilst the 10 miles is a flat-out ten mile ...
by Todj
Fri Aug 19, 2011 5:50 pm
Forum: General Discussion
Topic: Profile advice
Replies: 4
Views: 3816

Re: Profile advice

Remember you always have the option of measuring the Crr by doing a set of coast-downs together with a calibration ride. After you do them, connect the iBike to the computer and choose "Profile -> Download Coast Downs & Calibration Ride..." If you have an important TT and you want to ...
by Todj
Fri Aug 19, 2011 3:58 pm
Forum: General Discussion
Topic: Profile advice
Replies: 4
Views: 3816

Re: Profile advice

Thanks Travis. Much appreciated.

Is a Crr of 0.0055 a bit high for some fairly decent tarmac (or 'pavement' in US)?
by Todj
Fri Aug 19, 2011 3:13 pm
Forum: General Discussion
Topic: Profile advice
Replies: 4
Views: 3816

Profile advice

I have two profiles that I have set up and calibrated etc on my iPro. Profile 1 is for my road bike (hoods position), and Profile 2 is my TT bike (aero bars, skinsuit, pointy hat etc etc). Looking at the numerics of these profiles I'm pleased to see that the TT profile has a Cda of 0.270 compared wi...
by Todj
Mon Aug 15, 2011 3:11 pm
Forum: General Discussion
Topic: Clear sealing ring in iPro head
Replies: 2
Views: 2845

Re: Clear sealing ring in iPro head

Just to close this one off, the Velocomp shipping dept are sending me some spare rings (thanks to Jay, Sandy and Aaron).

I know that the standard shipping rate to the UK is $40 but they've very kindly dropped me a few into an envelope. :D
by Todj
Sun Aug 14, 2011 2:30 pm
Forum: General Discussion
Topic: Switching profiles issue
Replies: 4
Views: 4013

Re: Switching profiles issue

When you are setting up for a ride - are you moving both bikes around before you can pair the sensors? Bike 1 might win the sensor race to bike 2.... Also - when you download the ride file - do you get the sensor changed message - do you want to update? JUst a couple of thoughts Tom Thanks Tom, If ...