Wednesday, 2 August 2023

Upside Down









Having replaced the fixed gear winter/trainer’s headset, upon returning from our shakedown ride, I was despondent to discover a load of slop. A carpenter once said to me (while I was struggling with a student magazine feature) “Come back to it”. Words that have always resonated with me and usually, the most effective use of time, too.

Returning to something at a later point, the problem(s) and solutions are often obvious. Against this backdrop, I’d gone to do the supermarket food and fuel run in the KA.  

Fridge and cupboards stocked, I hopped online and looked for an exploded diagram of the FSA Orbit MX. Lo and behold, as I suspected the inscription on the lower race bearing was “upside down” when “right way up”.  


Hmm...work stand erected, wheel out, stem off. Sliding the forks out confirmed I had indeed, put the lower race bearing the wrong way up. Refitted, with an additional lick of Bearing Juice for luck, I double-checked the upper bearing-correct

 

Locking headset spacers make refitting stem etc that bit easier, since among other things, it’ll prevent the fork steerer from slipping out. This time round, I employed a gash 700x32c butyl tube to tether everything, while I fitted a 2mm spacer and a Dia Tech locking spacer beneath the Vecnum FreeQENCE Suspension Stem Vecnum FreeQENCE Suspension Stem | cycling-not-racing (sevendaycyclist.com)  

 

I’ve acquired two Dia Tech locking spacers, one plain, the other with a cable hanger. I’d found them bankrupt stock. Ursula’s is the only part that remains of its original build. Redundant in some respects, given I’ve gone over to disc, the locking function is to me, a serious boon.      

Back to the fixed...


Preload and stem bolts loosely set, everything felt buttery smooth and free of unwanted play. Wheel reinstated, K-Lite dynamo K-LITE ULTRA LOW DRAG DYNAMO LIGHT | cycling-not-racing (sevendaycyclist.com) switch cabling retethered to the fork leg with two cable ties...Out from the stand...Front brake on while rocking the bike back and forth revealed some residual play in the bearings. A slight turn of the preload cured that.  


Stem bolts set to 5mm, rocking test repeated, all felt fine, so I quit while ahead and before obsessional neurosis set in. Anything obvious had been eradicated. A quick cleaning of the frameset with Motoverde Waterless Wash & Wax Motoverde Waterless Wash & Wax | cycling-not-racing (sevendaycyclist.com) before everything was repatriated to the garage.   


I’ve switched Ursula from the Muc Off Dry Lube to Momum MIC Wax Momum MIC Wax Lube | cycling-not-racing (sevendaycyclist.com), which, in common with its dryMomum Mic Dry Oil Lube | cycling-not-racing (sevendaycyclist.com) sibling is quick curing, can be topped up (without needing to strip the residual) and returns a decent mileage per application. This also gave opportunity to tweak the rear mech’s cable tension, since there was some jumping when riding in the small ring and under load. Little n’ often checks and tweaks are what keeps us rolling and more serious issues/breakdowns minimal.  

 

A few formative rides on the fixed suggests the Dia Tech spacer has solved the problem. Much the same story for the Teenage Dream’s reconfigured transmission. My suspicions that a 42 ring was a better fit than a 39 with the 14-24 block and returning to Time ATAC pedals better knee health is panning out nicely.  


I’ll leave the spec alone now, although how many times have, I said that... Hmm, watch this space... The weather has turned decidedly soggy, meaning I’ve switched back to Ursula and the fixed gear winter/trainer but great for testing, too.  


Aside from being relieved, I’d gone the sealed bearing route with the latter’s new headset, it's proven a wonderful opportunity to get some serious miles in with the Muc Off Waterproof Socks. There are plenty of waterproof designs on the market. Most are genuinely competent, but these seem a better fit with sportier cycling shoes. 

  

I’ll close here with my review of the Madison Roam Men’s Cargo Bib Shorts Madison Roam Men's Cargo Bib Shorts | cycling-not-racing (sevendaycyclist.com) and Steve’s test of the Chiba BioXCell Air Cycling Mitts Chiba BioXCell Air Cycling Mitts | cycling-not-racing (sevendaycyclist.com)  

Wednesday, 26 July 2023

Ringing the Changes










  

Having swapped the Mirage for the carbon with Middleburn and Campagnolo Record, I have saved 83g, which was less than I’d expected but saving grams wasn’t the primary, or indeed, original mission.  


Having bolted the rings together and snugging them down “blind” the first sticking point was discovering the Xenon did not employ self-extracting crank bolts, necessitating a quick root around for the crank puller. Not a hardship, but it was not where I’d expected to find it.  


I toyed with treating myself to a Park CCP-22 complete with integrated handle, since Holdsworth, Fixed Gear Winter/Trainer also use square taper cranks (although the Holdswoth’s Stronglight employ self-extracting bolts). However, by and large crank removal is rare and usually coincides with bottom bracket replacement (between 6,000 and 10,000 miles, depending on what fit n’ forget-sealed model I’d gone for).

  

Extractor found; the Xenon literally popped off their tapers-hardly surprising but welcome. A quick tug of the ACOR cartridge bottom bracket also ruled out any slop or grumbling. I might go for something lighter when these strike. Something with a carbon fibre spacer, alloy cups would save a few grams... Back to the crankset.   


Slid on the tapers, I found myself needing to raise the front Victory mech up a few millimetres and for some reason, it got the sulks. Nice new cranks, lovely new rings, what’s going on here???? I mused... 


Hmm, a new cable might sort things- costs pennies and I had a few in. Yup...the new cable sorted matters and the cage was swinging the Sachs chain snappily to and fro. I pruned the cable, leaving a little to subvert potential stretch overnight. Checking the Sachs chain while I was there confirmed it was in good health (although I had a KMC in stock, since these things usually expire at the least convenient moment).  


Continuing the weight saving, knee-friendly theme, I slipped some Peaty’s Bicycle Assembly Grease on the threads and whizzed Time ATAC in- the resin, rather than aluminium bodied versions. A quick once-over of the crank bolts and chain rings the following morning, shifting checked, I topped up the CST Cito CST Cito Folding Tyre | cycling-not-racing (sevendaycyclist.com) with the SKS Air-X-Plorer Digi Floor Pump 10.0 SKS Air-X-Plorer Digi Floor Pump | cycling-not-racing (sevendaycyclist.com) and popped it away ready for a shakedown ride the following morning.    


Wetter weather and the urge to explore green lanes and bridleways has meant Ursula and I have been out to play a fair bit, too. I’m warming to the Maxxis Ikon in these contexts. As I’d expect from a small block model, they’re less ponderous than a more aggressive trail tyre on metalled roads and come into their own along dry singletrack-plenty of smiles per mile. 

 

Despite being the baseline version, the ride is compliant and I’m yet to flat. Kenda Small Block 8 were quicker off the mark and a bit livelier but also more prone to flats. Elsewhere, I’ve gone for Muc Off Dry lube, which is keeping the chain clean and returning reasonable miles per application. It’s also been the ideal opportunity to see how the Madison Roam perform off road proper 


Time also allowed me to replace the fixed’s Stronglight in favour of the FSA Orbit MX. The latter’s stack height is a little taller-only by 5mm and easily solved by dropping a spacer. When it comes to headsets, stoicism is my default grease-wise. I want the stuff to say put, keep the bearings slick and corrosion-free. Now, the MX is also blessed with seals, which is nice. It’s another reason to avoid lithium or PTFE-based greases since these could cause perishing.  


Some lighter middleweight preps, including Muc-Off Bio Grease and Green Oil Eco grease hold their own surprisingly well, too TWELVE MONTH TEST: GREEN OIL ECO GREASE (sevendaycyclist.com) Flying in the face of this, I found myself pondering Peaty’s Speed Grease PEATY'S SPEED GREASE | cycling-not-racing (sevendaycyclist.com), for the last word in buttery smooth, friction busting lubrication. Ultimately, I’ve decided treating the bottom race with Juice Lubes Bearing Juice and the upper race with Peaty’s Speed Grease was the best compromise