Bottom Bracket Bites The Dust

 

Once again, Ursula's front mech began misbehaving. The first time, I returned and discovered some slop in the Hollowtech II crankset. Hmm, curious, but nothing a quick tweak of the bearing tension wouldn't fix, right? 

The following outing and yep, the play hard returned, signalling the ti bottom bracket's cartridge bearings were spent. I'd bought a couple of XT units in preparation for this, or similar expiry.  No time like the present.

Being well greased, the crankset and bottom bracket released very easily. I gave Ursula's bottom bracket shell a careful cleaning, introduced some Oxford Mint Assembly Grease Oxford Mint Assembly Grease | cycling-not-racing, applied a light coating to the XT bottom bracket and then sped it home.  Talking of grease, Steve’s been long term testing this Blub Lithium GreaseBlub Lithium Grease | cycling-not-racing

I went the deep clean route with the rings and spider a ride or two later but was more concerned with getting everything home and ruling out anything else. I reached for the Peaty’s Speed GreasePEATY'S SPEED GREASE | cycling-not-racing and applied this to the Deore cranksets axle, reducing the friction, while keeping corrosion and similar hassles at bay. A quick nudge of the 10mm preload cap, confirmed my diagnosis was correct, the titanium unit’s ceramic bearings were indeed shot.

Double checked, I wound the pinch bolts home to 14nm, spun the cranks-all sorted. Another little job off the list, although in retrospect, I might've been better served going for the XT following Ursula's frame refurb and modification.  Some greasy finger marks adorning the right chainstay and bottom bracket shell were effortlessly dismissed with the BBB Bio Ready wash and a retired sock.

During this phase, I was also convinced I had another, a third Hollowtech II bottom bracket hiding away in the spares boxes. With a little time on my hands, I took this opportunity to root around, emerging victorious. It features the usual fit n’ forget bearings, aluminium cups and a composite component. This saves 20g or so over the titanium Van Nicholas, although I’m confident the bearings won’t last nearly so long.  Nice to have another handy, though-even if only as a stop-gap.

A few weeks and many mixed terrain miles down the line, the CST Patrol continue to impress with their all-rounder prowess, proving suitably swift on pockmarked asphalt, unmade roads and dirt trails. Impossible to comment on their mud churning prowess given it's been refreshingly dry of late. The EPS belt seems similarly effective at keeping flints and other sharps from causing mischief. However, rains and boggy conditions may tell a different story.  

Staying with tyres and inflation, I’m extremely fond of mini-inflators, which while not quite magic bullets, save time and effort when recovering from wounded butyl. I’ve tested a fair few in recent months and to date, my favourite is the CYC PLUS AS2 Pro Max E PumpCycPlus AS2 Pro Max E.Pump | cycling-not-racing . The relatively large battery will inflate up to 4 tyres between charges, which is great for longer rides, especially bigger volume gravel and mountain bike rubber. It also features a digital pressure gauge, taking the guesswork out of things, so there’s only operator error to blame if you’ve whacked in too much pressure.

More compact models fit better in jersey pockets. I’m fond of Muc Off’s Air Mach Electric Mini Inflator Muc-Off Air Mach Electric Mini Inflator | cycling-not-racing  it charges from zero to 100 in 25 minutes and capable of 100psi. However, and this goes for other designs with 7.5v 300mAh batteries, I’d advocate carrying a decent pump as a backup, should you succumb to a further, or multiple flats during a ride.

Against this backdrop, I’d spotted their PRO version, which in my view is a great improvement and could give the competition a good run for your hard earned. £100 buys a model capable of 120psi and will inflate up to 4 tyres between charges, which only take a few minutes longer than the standard model. This is also quite impressive, given Muc-Off has opted for a 7.4v 450mAh, which improves power output but without unduly increasing bulk.  

The Pro also incorporates a digital gauge and auto cutout when the desired pressure is reached, which is super convenient and a very welcome upgrade. Other improvements include a screw on extension hose for TPU valves since these can melt (it’s also recommended when tackling Schrader), a ball needle for footballs, beach balls and similar items we may pick up on a family, or group ride.

The instructions give guide times for various tyre sizes when fully charged. 26inch isn’t included but there are sufficient comparators for me to cross reference claims during testing.   

This Velo21 mini adjustable torque driver wrench. Unlike the preset types I’ve been testing recently, its adjustable between 4, 5 and 6nm, which should cater for contact points- a seat post adjustment, loose stem face, Aheadset bearings, cable pinch bolts, 6 bolt disc rotors, disc callipers to name but a few. Formative impressions are favourable, as is the price, so we'll see what the next few weeks and regular fettling reveal...  

 

Spring=Tweaks & Trails

 

Sometimes it's not the nice new shiny kit that brings the most joy, nor a personal best, or an epic ride. Sometimes, it's getting a wayward, recalcitrant component to behave. Ideally from the comfort of home-an outpouring of relief usually follows the latter scenario.  

 

Recent little victories include getting Ursula's Microshift bar end shifters to play properly with the old girl's STX and Tiagra mechs, upgrading Denise's Hollowtech II preload to an aluminium alloy 10mm Allen key, meaning I can largely forget about the little plastic tool bit that invariably gets lost behind the workbench, or similarly inaccessible area of your workspace.  

 

Last but not least, there's the wired Remote for the Magicshine Ray2600, which means I can whip the power up and down more readily on the fly-great for exploring the lanes in the dead of night. 

 

After an unexpected cold snap prompting me to default to Ursula and the spikes, things thawed a little and I revisited the idea of Denise and gravel tyres. I’d stuck with the Continental Pure Contact, which have proven themselves incredibly dependable in all contexts, meaning I could just hoss along, confident I’d return from a ride without flatting-particularly welcome when pressed for time. Extra UK have sent me some Pirelli Cinturato Gravel M (700x40c).  

 

These are a tubeless ready mixed terrain gravel tyre designed for mixed conditions, wet, or dry-hence their appeal. The Cinturato Gravel M employ the Speed GRIP compound, which promises mechanical resistance, chemical grip, and similarly important, impressive puncture resistance. This is a nylon belt that runs bead to bead, rather than just the centre strip, so I’m hoping they deliver, not least since hedge cutting season has returned with a vengeance.  

 

They were surprisingly easy to sweep aboard the Ryde rims-read thumbs, no tyre levers, pressure ranges closely mirror those of the WTB Nano WTB Nano TCS Tyre | cycling-not-racing, as does the tread pattern. They’re 14g heavier at 513g, but still a very respectable, dare I say reassuring.   

 

Given a marked shift to milder conditions, I also took it as my cue to switch Ursula back from the Schwalbe Ice Spiker to the Continental Cross Kings. Doing so also revealed a little slop in the Hollowtech II bearings, which may have also contributed to temperamental shifting- out came the Oxford Torque R10, which tackles most jobs nicely, including those with higher torque fasteners-no issues removing the crank pinch bolts. A judicious turn of the M20 preload and these were nipped snug, then fully home with a torque wrench...Time to hit the lanes and trails   

 

Wouldn’t you know it, the front mech was misbehaving again. I released a smidge of tension from the STX’s pinch bolt Ursula’s front mech, then released the Microshift bar end lever’s tension fractionally- bingo up and down without missing a beat. Nothing serious, but these units seem more highly strung than their Centos 4700 counterparts. I also raised the saddle by a few millimetres, which seemed optimal.  Talking of tools here’s Steve’s review of the Oxford Torque Slimline 12 https://www.sevendaycyclist.com/oxford-torque-slimline-12-co2-multitool 

  

The milder conditions have allowed ¾ lengths It’s not been sufficiently mild for short sleeve jerseys and arm warmers, but layering is the key to enjoying early season and autumn.  

 

The ability to whip a layer on, or off to counter a sudden change in weather is good at any point- micro jackets will protect against unexpected showers and sudden, chill winds. Lighting is also very necessary since while nights and mornings are getting longer and arriving earlier, it's easy to get caught out. Six months or so hence, I’m suitably impressed by Shimano’s most recent incarnation of their Nexus Dynohub.  Shimano Nexus DH-UR700-3D Dynamo Hub | cycling-not-racing 

  

Though less mucky than midwinter, the early season still calls for regular bike cleaning. Oxford Products have sent me this huge cleaning buckets, which makes cleaning a big fleet (and indeed, other vehicles) a more time-efficient task.  

 

The bucket has a grit grate to stop gritty, muck stuff being redistributed around the bike (or another vehicle), there’s also a wash mitt and microfibre cloth. I’ve already given the KA and Micra a good wash n’ waxing to purge the witches brew of slurry and road salt and the 20-litre bucket makes the job much quicker-no need to run indoors to fill mid-way through.