Showing posts with label Seatpost shims. Show all posts
Showing posts with label Seatpost shims. Show all posts

Monday, 2 September 2024

Gearing Up (& Fresh Grease) for a New Season


 







Ursula’s drivetrain purged with the NZero Bike DegreaserNZero Bike Degreaser | cycling-not-racing (sevendaycyclist.com), new chain and other parts set aside, I’m awaiting a 100g (about 3.53 oz) tub of Oxford Mint Assembly grease ahead of the rebuild. Oxford describe it as “a high-performance red grease with pressure additives to provide excellent lubrication and dirt repellent properties”. The base is solvent refined mineral oil with a lithium complex thickener.   

In this instance, Oxford recommends it for low-speed applications, such as bicycle bearings and pivot points, which need low friction, while being highly resistant to the elementsSynthetic blends are best for modern bikes where carbon and other composites are typical. Traditional lithium pastes are very stoical on old school cup and cone hubs, unsealed headsets etc.  

However, they will do very nasty things to rubberised components, including seals and encourage galvanic corrosion (where ferrous and non-ferrous components, such as aluminium alloy seat posts in steel frames get chemically welded to their hosts). If you’re only going to have one blend on the shelf, I’d go synthetic. Purpose specific blends are the way forward if you’re looking for the last word in performance.  

Assembly greases for contact points, bearing grease for hubs, headsets and pivot points. Ultra-low friction blends, such as Peaty’s Speed Grease PEATY'S SPEED GREASE | cycling-not-racing (sevendaycyclist.com) are particularly good for competition riding, or summer bikes. Contexts where you really want to blast along and get every last benefit from that top drawer groupset.  

The speed Grease has also proven surprisingly stoical, clinging on through winter, although I’d still be inclined to strip and replenish every six months or so. Ok, so the darker months aren’t here just yet, but preparing for them makings riding more fun and breakdowns infrequent. Thus far, the Shutter Precision SL9 hub still sems in good health but I’m contemplating taking another direction before it does.  

Experience suggests it’s the sealed bearings that get the grumbles given 20,000miles or so and I’m edging towards that. The most obvious, dare I say cost effective solution is to have the SL9HALO EVURA & SHUTTER PRECISION SL9 DYNOHUB BUILD (sevendaycyclist.com) overhauled via Ison Distribution (their UK Importer) and have the silver anodised Shimano unit presently in hibernation, built into the existing Halo rim and have that as a dedicated front wheel for Denise...Waste not, want not, use what you got and er, rationalise the spares bin.    

Talking of which, I was eager to find a longer shim for Ursula’s Kinekt 2.1 seat postKINEKT 2.1 SUSPENSION SEAT POST | cycling-not-racing (sevendaycyclist.com), since a longer unit should offer greater support to the post and ultimately, prove kinder to the frame. A cursory rummage through my small parts bin confirmed I had a Cane Creek unit, so another thing off my mental list and though always a worthy investment, I didn’t want to spend money unnecessarily, since insignificant amounts can quickly add up.   

Days are slipping towards autumn, which as I’ve said many times, remains a favourite season but also a reminder of how precious time is.  

Once the preserve of aspiration and optimism (embarking on a university degree and moving to London’s East End, meeting a woman who would ultimately come with me through thick n’ thin, hell and high water-seemingly unlimited horizons) The last fifteen years, autumn has been a reminder of how much I need to achieve. Never put off tomorrow what can be done today.  

This in mind, I’ve switched to racking up the miles wearing the Madison Flux mitts. They’re a little on the snug side, so I’d recommend paying particular, not cursory attention to their sizing chart. That aside, they’re proving competent, comfortable options-on and indeed, off road.        

I’ve also been contemplating cables ahead of Ursula’s rebuild and decided that, given we’re creeping toward the darker, wetter months I’d go for a sealed system, at least for the brakes. Extra UK has sent me Jagwire’s Road Elite. In common with other “sealed” systems, it employs a continuous, factory lubricated liner.  

This runs from the lever to calliper offers much greater protection from grit, grime and other performance robbing contaminant. The inner wires are also polymer coated for. However, these 2.4mm liners may not be universally compatible with frames and/or components. We shall see...  I’ll leave you with my review of Ergon SR All Road Core Comp Saddle Ergon SR All Road Core Comp Saddle Men | cycling-not-racing (sevendaycyclist.com) 

 

Sunday, 6 December 2020

Puddle Muddle









 

The weather has turned wintry over the past week and for the most part, I’ve been enjoying the changes and minor challenges it presents. Forecasts had threatened but thankfully not delivered ice. I set out on Friday morning a little later than usual for a longer meander around the lanes.

Harsh winds, sleet and snow showers greeted me as I warmed up along the winding descent. I’d opted for these Primal Dawn Men’s Bib Knickers BUFF PACK BIKE CAP | cycling-not-racing (sevendaycyclist.com) and Oxford Products Ox socks OXFORD OX SOCKS | cycling, but not usually racing (sevendaycyclist.com). Up top I opted for a short sleeve base layer with windproof panel, long sleeve jersey and technical jacket. For some reason, I switched gloves and meant to grab my Belgian style cap but stuck with the Buff Pack Bike Cap BUFF PACK BIKE CAP | cycling-not-racing (sevendaycyclist.com)Perfect conditions for evaluating the FLR defender.

On the outward leg, roads were wet, greasy but I quickly upped the tempo and cruised along. Ten miles in a flooded causeway and seemingly stranded Audi signalled a quick U-turn and alternative route. Checking the fixed’s chain revealed a stubborn but increasingly filmy layer of Muc-Off ebike Wet weather Ceramic Chain Lube and I was yet to be serenaded by the faint metallic tinkling, so charged up another climb and along some very windswept, lonely lanes.

Three miles from home and the narrow lane had become a river. Calve-deep by the time I’d done a proper risk assessment. Riding was too risky, so I shouldered the bike and trotted through cyclo-cross stylee.

Two miles later and I was home. Soggy but relatively warm feet meant I treated the bike to a thorough wash, and I stripped the chain of the residual lube and embedded gunk. In fairness, this particular wet ceramic doesn’t overly attract drivetrain gobbling muck but there’s no sense allowing it to reach that stage, especially since the bike needed washing anyhow.

One thing lead to another and I decided to swap the excellent Redshift Sports Shockstop Suspension Seatpost REDSHIFT SHOCKSTOP SUSPENSION SEATPOST | cycling-not-racing (sevendaycyclist.com) for the Kinekt 2.1 seat post (with a long Cane Creek 25.4-27.2 shim not the 25.4-26.6mm, pictured) and this bespoke Dill Pickle Store Bag that has been doing the rounds, very capably for a few years.  

Shims have a slightly dubious reputation in some circles and having witnessed some frame popping caused by the very minimalist designs, back in the early-mid 90s, can appreciate why. If you are going this route, spend a tenner and get something decent. People risking a decent frame for the sake of a few quid astound me.  I would not go this route with carbon-posts, let alone framesets.

The Cane Creek shim is 100mm long, and very nicely machined, which should eliminate risk of additional stress being placed upon the seat tube, especially, since there’s ample post inside the frame. I’ve used a light grease between post and shim, shim and seat tube. To avoid the risk of galvanic corrosion, between an alloy sleeve and steel frameset, go for a synthetic, or PTFE infused, rather than lithium-based prep. 

Talking of lubes, I was also stunned to discover a phantom creak. I initially attributed this to the front hoop’s q/release having worked loose, permitting minor movement of the wheel, causing the rotor to catch the pads. To my astonishment, said sound was traced to the Kinekt stem. This seemed to ease out, as the miles progressed, silence restored of its own accord some five miles later. However, I’ve since added a precautionary drop of Green Oil Slip Eco Lube GREEN OIL SLIP ECO LUBRICANT (sevendaycyclist.com) to the unit’s linkages.

 I’ve also switched to the Halo White Line and Shutter Precision PD8 wheel  HALO CLASSIC RIM & SHUTTER PRECISION DYNOHUB DISC WHEEL BUILD (sevendaycyclist.com) and shod it with the 38mm Vee Tire Co Zilent MK2 Tyre up front TESTED: VEE TIRE CO ZILENT MARK 2 TYRES (sevendaycyclist.com)   Chain lightly lubed, a quick shot of maintenance spray on cables and cleat mechanisms-job done and warm bath for me, before I ran the cold gauntlet.  Talking of which, Steve has been impressed with these Showers Pass Crosspoint GlovesSHOWERS PASS CROSSPOINT GLOVES | cycling-not-racing (sevendaycyclist.com) . More next week..