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Hi Elwin - I have a XL carbon Trek Procaliber hard tail https://www.trekbikes.com/za/en_ZA/bikes/mountain-bikes/cross-country-mountain-bikes/procaliber/procaliber-9-5/p/33258/?colorCode=grey in excellent condition I can give you for R20k. I'm 189 and fit is perfect - I wouldn't go down to L size. WhatsApp me on zero83four455210 if interested.

Nice bikes and the custom paint is awesome. Geo is on the extreme end of long and low so check that’s your thing. I’ve seen a few running ridiculous spacer stacks.

I was at the front of L (haven't raced in 10 years) going up the big climb and a solo guy from Z came past bloody fast - I rode with him for a bit and he said he'd started in Z because he was a late entrant. I finished in 3:02 and he'd already taken more than 10mins off us by that point so he must have finished in a fast time - don't know if it was this guy - may have been Christian Truter who finished first in Z in 2:28 but don't know if anyone could have ridden solo that fast? He was wearing a Munga shirt. The next Z riders only caught us after the 40km riders joined and it was a group of about 8 riders.

Yeah saw that, but it's within reason. Without smoothing it was just gibberish and completely useless.

In response to a number of people... the power meter was really unusable without smoothing - it would start at around 250W then jump up in 20-30W increments to around 270 or 280, then dive down to around 150/160 over a few seconds, then jump up again. There is no way I was putting out 100+ watts of variance in power over about 5 seconds of seated peddling on a consistent gradient. The good news is the 3sec mode improved matters a lot, to the point that it makes sense and is a readable number. My guess at what is happening is that the left side only PM reads through the stroke - obviously when pushing down you make power and then through the dead zone and on the upstroke there is much less power. Then it sends a signal over ANT+ or BT to the head unit but there is a transmission interval between when each packet of data is sent, and then an interval between each loop when the head unit reads the data, and then an interval when the head unit updates the display of the number. If that gets out of sync with the power meter, then it is sometimes displaying the amount from the upstroke, and other times the downstroke, and others the dead point, then that would explain this wild jumping. Anyway, 3 sec smoothing sorts most of this out and I'm sure 10 sec will do that even more. Out of interest it's the latest Precision 3 and on latest firmware and calibrated several times. Cheers for all the advice and comments.

Thanks everyone - will test the smoothing and report back here asap.

Bought a new Ultegra 4iiii power meter and took a first ride today. Paired fine with a Garmin 530 and did the calibration (and again mid-ride because I thought something was wrong). On a gentle hill, seated in a Zone 2-3 heart rate effort, keeping the pedalling as smooth as I can, the power is fluctuating wildly over about 5sec from around 270W-160W - jumping up and down 20-30W at a time. I'm keeping the pedalling pretty consistent and the bike is smooth and stable and going at the same speed - there is no way the power is fluctuating anything like that much. Checked in with 4iiii and they sent me a link to a tech document saying the unit supplies raw power data and I must implement 3, 5 or 10 sec smoothing at the head unit. Does this sound right? Anyone have experience with this? I'm new to the power meter game so trying to work out if I have a faulty unit or this is normal?

He's awesome and I would unreservedly use Nick for any rebuilds or or new builds, just isn't really worth time and shipping one wheel for a slight trueing.

Nick's in Cape Town? I thought he was in Wilderness? He's built wheels for me before...

Who is currently recommended for wheel trueing in the Cape Town or south peninsula area? I know all mechanics do this to a degree but ideally looking for someone who can check spoke tension properly with the right spoke meter and do a quality job on some carbon road wheels. Much appreciated.

Stolen: LeMond Chambery 1998 When: 03/04/2022Where: Gardens, Cape Town, Western Cape105 groups (non-original) with well worn 105 pedals. Mavic wheels with slight wobble on front and hairline cracks on both sides of fork, high up near crown.Get further details about the incident in the Stolen Bikes section.

Thanks everyone - those are helpful

Hi - looking for recommendations for the best bike fit specialists in Cape Town area - preferably a physio with a strong scientific basis for the fit.