Showing posts with label Bicycle gearing. Show all posts
Showing posts with label Bicycle gearing. Show all posts

Monday, 9 June 2025

Double Pleasure


 






No, not that sort-I’m referring to a 36/26 Deore Crankset complete with front mech and cables for less than the cost of a couple of rings. Be rude not to, since I was bound to wear Denise’s existing Deore 1x at some point in the not-too-distant future- it was the original ring and had served on Ursula before that.

Denise’s existing KMC chain was registering .5 on the chain checker. Late middle age in chain terms, so another thing I would need to be switching at some point.

While there was still some life in the existing KMC, I decided to mount the crankset, before going for a front mech and (bar con) shifter route. This was to check whether the existing 106 links was sufficient, or whether I might need 108. I’d some pre-cut (106 link) chains in stock, so would be nice if that was so.

In terms of front mech, given the frameset’s age, I reasoned, like Ursula, the seat tube was 28.6 and had originally looked for another STX. However, front mechs are fairly crude beasts, so I wasn’t going to pay over the odds. This top pull SR Suntour triple was along similar lines and seemed a good bet, especially teamed with a Microshift bar end shifter, which offered plenty of scope for adjustment and fine-tuning.

Before the crankset and front mech arrived, I’d gone on a quick “Easter Egg” hunt for shifter, cables, pre-cut chain and set them aside. The following morning, having returned from a ride, I decided to measure up (guestimate) for the front mech’s positioning, removing the seat tube bottle cage and applying some helicopter tape where the mech’s band on clamp would most likely rest.

Next, I noticed some mysteriously chipped paint on the seat stay carrier boss. Out with the fastener and a quick lick of high-build primer followed-another little job off the list. Since I also needed to reposition the Exposure Revo dynamo lamp, so decided to install the Microshift bar end shifter, one that had commanded Ursula’s STX front mech, prior to the frame’s repair, modernisation and makeover.


I didn’t want to get to the point of no return, rather where I could progress but without being committed, able to break and reflect as required. Just as well, since the gear cable housing I’d ordered hadn’t materialised. I’m sure I had some but ordered more. I wanted to check 106 links was of the correct length and, given the existing was 106 and still had sufficient life, I bolted the 2X Deore crankset in situ and set everything up to ride.

 Afterall, if the Crane Cousins could journey to the centre of the earth sans front mech, I could for a week, or two.  While we all like stuff that comes together first time and with minimal faff, there’s something very satisfying about fine tuning.  At this point, I was suddenly struck, dare I say attacked by a horrific thought- that the mech wouldn’t reach the rings. Offering the mech up quashed this anxiety and also confirmed its ideal mounting point-phew! 

On the stand, everything seemed to behave and the rear mech didn’t look unduly strained and was replicated in subsequent rides, so when some Shimano gear cables arrived, I removed the chain, offered the SR Suntour mech up and, it fouled the rear tyre…Confidence drained from me like a straining tea bag. Two options…Buy a new mech, an STX or Deore LX from this period. Or…Switch Ursula’s STX for the SR Suntour. I did both.

Found a Deore LX for less than £10 and was relieved to discover ample room between Ursula’s rear tyre, even with a 2.3. Given I wasn’t going the triple route, I was confident the SR Suntour would play nicely, and it did. A fresh inner wire, some adjustment of the H/L screws, and the cage scooped the chain back and forth dutifully. Cable pruned and glued, I turned my attention to Denise. Existing KMC chain split, I mounted the STX, fitted a fresh KMC and wired everything up. To my relief, save for some tweaking of the limit screws, the cage swept the chain between rings.

Some would argue mullet drivetrains are a better bet and on some technical grounds, I’d agree, but the 36/26 11-25 setup gives me a good, knee-friendly spread between 28.4 and 89 inches. I’d also been toying with replacing the Suntour XC SE cantilever. These are a rear-specific design from the late 1980s and still offer decent performance. However, adjustment is a little more involved compared with a traditional cantilever. I was also seeking something period-sensitive but without paying period prices

Tektro CR720 were an obvious default-sensibly priced and certainly up to the job…Then someone waved these NOS (New Old Stock) Kore under my nose for less than £10. A third of the Tektro’s rrp, so no debate there. Again, I needed to replace the inner wire, and wanted to inspect and most likely, re-grease the bosses, so then was the time.

By contrast, the Kore were very easy to set up- I just added some sped grease to the bosses, slotted everything in situ, and adjusted with a 5mm Allen key and 10mm ring spanner. The left balance screw needed a quick turn-using a 3mm Allen key common to all modern multi-tools. Talking of which, I'm off to fine-tune the rear mech.

 

Tuesday, 19 December 2023

Road to Christmas Recovery








I was suddenly struck by the seemingly inevitable and unavoidable seasonal Lurgi. One that left me bedridden for the best part of two days and asleep for 18 hours straight. I’d struggled to remain alert for 6 hours and managed 75% of a draft alongside some other generic admin. Sabre Tooth Man-Flu is a force to be reckoned with.  

Retrospectively I’d felt it charging full force on Sunday when I was switching wheels and giving the fixed gear winter/trainer a seriously good sudsy bucket clean. Neighbour had struck up conversation, while affixing Christmas lights to their wooden fascia and I was struggling to maintain a decent tempo of routine work and response.  

Night terrors are another obvious sign for me. There are people my rational mind knows I could not help and for the most part, their deaths were beyond my control, but the world and human experience are not necessarily rational. Sometimes, during these nightmares, I will meet the figures at the end of a long tunnel. Other times, their decomposing entities can be sat at the foot of my bed, seemingly begging my attention. Sometimes they are benevolent and kind, other times vengeful and malevolent. Not where we’ve been and done but what we do with these experiences, I guess.  

Two days later and I was back in the saddle- the fixed gear winter/trainer’s to be precise. This proved a little “previous” and I was struggling to move. For context, I slept 18 hours, during the first phase of this germ fest and was fooled into feeling better. Predictably in retrospect, I succumbed to a second helping. One synonymous with sinus headaches and similar pain. I ultimately reached for the paracetamol and lemon mix, which seemed to loosen the mucus floodgates and the intense pressure that dogged my ability to function. Sometimes enforced rest is what’s needed.  

I’m sticking with the Halo Aerotrack wheel and 15-tooth Ti sprocket, which with the 35mm CST Expedium and 42 tooth 165mm Genetic Tibia cranks translates as 76.1-inch gear. Some would suggest a little lower-72 maybe, but in practice, I’m not spinning out, or indeed, struggling to winch myself up the climbs 

Saddleback, Feedback Sports UK importer graciously sent me the brands’ Reflex Torque Wrench. Ita a mini torque wrench, designed for mid-ride adjustments-adjusting saddle tight, tightening a slipping stem bolt etc. 5nm is the maximum, too low for things like Shimano Hollowtech II cranks, so you’ll still want to carry a traditional multi-tool (although you should anyhow, since torque wrenches are only designed for assembly).  

Prevents unintentional damage of carbon fibre components and indeed, aluminium alloy components. Exceed the 5nm recommended on a seat collar bolt at your peril- I’ve seen the bolts snap/ shear clean off. Not what you’d want 20 miles from base.       Last bucket wash, I’d gone for a proper drivetrain clean and opted for the Zefal Extra Wet Nano Ceramic Chain Lube ZEFAL EXTRA WET NANO CERAMIC CHAIN LUBE | cycling-not-racing (sevendaycyclist.com)  (a) It was to hand (b) I’ve found it stays put and requires negligible time to cure.  

Ursula’s sticking with the Silca Secret Formula Chain Lube. Was relieved to get a call from Mick Madgett saying he’d replaced the Halo Spin Doctor’s Freehub. Upon collection, conversation turned to the hub’s internal composition and specialist tooling e.g. circlips.  

Apparently not. However, it took two of them to release the defunct freehub-knew there was a reason I outsourced that job! I put a lick of Wolf Tooth Grease on the free hub and cassette lockring and spun everything back together- tyre too. Will give the XT/Ryde pairing a few runs for the time being. They’ve also got the spikes on, which may come in handy, depending how conditions turn in the coming weeks.  

Regardless of how wintry the lanes have been, the Shimano MW501 have kept my feet dry and very temperate, the sole offering plenty of grip on slippery stuff and generally improving my riding experience through these dark December days.  

The heel cup and nimbler feel means they’re quickly becoming my favourites. I was very endeared to a pair of Lake, which lasted many years. However, the Shimano’s fit feels closer to that of a cyclocross/gravel shoe than a traditional mtb bootie, which for me, is more agreeable.  

The Madison Roam 2 jacket is also proving a well-conceived garment for not a lot of money. Decent fit, sensible pockets, useable hood and Velcro cuffs for a convincing seal against the elements. I prefer removable hoods but thus far, the Roam’s hasn’t made a nuisance of itself, when not required. On that note, I’ll leave you with an overview of clothing for the cooler, wetter months...WINTER WONDERLAND TWO (sevendaycyclist.com)  

 

Wednesday, 1 February 2023

Fluke & Fortune











I was doing a light swap, since the little Topeak Taillux 30 was begging for a charge, come the close of our ride. I switched to its 100lumen sibling TOPEAK TAILLUX 100 REAR LIGHT | cycling-not-racing (sevendaycyclist.com). While I was rooting around for the bigger Topeak, I noticed a Garmin type front mount belonging to a Magicshine light and suddenly had the notion that it might be a good cure for the rattly See Sense Beam+ mount.   


I was pleased to discover this sorted the issue (although See Sense and I were of the belief this was just a rogue mount). Silent and rattle-free. Sometimes it’s the little things that bring the biggest grins. However, rubber straps tend to require judicious force to get them rock steady on the bars.  


They may seem immobile at first but creep given a few miles, especially subjected to low level vibration. Washboard tarmac, rumble strips (the sort designed to reduce speed and therefore, calm traffic speed) being prime examples. I’m hoping this shim might be the way forward... 


This discovery coincided with the arrival of these Ergon BT Ortho Cell Pad Set. These are strips of 2.5mm thick foam padding designed to reduce discomfort from low-level vibration.


Unlike some “military grade” products, there’s no trade-off in terms of aesthetic.  

This is a definite plus, especially if you’re dressing the bars of a mile-munching classic with pencil thin steel tubing.


Ursula is arguably at the opposite end of this spectrum. The foam itself seems unaffected by cold, at least when fitted. Though fitting was hardly taxing, getting the strips to mould and sit nicely required gentle warming from a hairdryer.  



I suspect this was attributable to the air temperature (struggling to minus 2 and I suspect a non-issue when temperatures hit the low teens)Thus far, the foam pads seem to offer some additional damping but it’s also worth noting that I’ve been wearing liner gloves beneath the Altura.  

 

 Seeing Sense Again.  


Mount aside, I’m endeared to the Beam+, its intelligent features and impressive run times. 400 icy, wintry miles down the line and I’m warming to the Muc Off All Weather Lube, which is staying put better than I’d expected, given the suggestion it might need reapplication in wet conditions. Contexts, which will find a chink, or fault in a product, sometimes with unwelcome ease. 

January marked the 24th year of me spotting Ursula in Bob’s window- frame and fork £125. Much has changed, much has been worn out and upgraded but the old girl remains true to my original vision.   


I’ve stuck with the 11-25 setup (Two Shimano Tiagra Cassettes), since these were heavily discounted and will switch to the similarly inexpensive 11-28, when the freshly fitted KMC chain wears out.

   

I’ve been so thankful for the Schwalbe Ice Spiker Pro’s 360 spikes, which really inspire confidence across thick ice. https://www.sevendaycyclist.com/schwalbe-ice-spiker-pro-tyres  The Schwalbe Winter Plus’ 240 are very dependable but the Ice Spiker Pro bite in contexts where I’ve felt a momentary pause from the 240. Not enough to cause problems, or anxiety. More a gentle nudge, which keeps my senses primed and speed in check- typically into the bends.  


Despite biblical warnings from some “newspapers” the bitterly cold snap passed, and I was able to switch back to the SP SD8 and XT wheels shod with the Maxxis Overdrive Excel. I needed to see how the freshly repacked hubs compared and to get some more miles in, with the Maxxis.  


Hubs are buttery smooth and silentThe Overdrive Excel are brisk and engaging tyres with a bit more zing, though no loss of puncture resistance compared with some iconic favourites. Whether this puncture resistance will prove consistent, up until the point they’re worn out, remains to be seen.  


50-55psi seems optimal when it comes to speed, compliance and grip and phrases like trekking, or hybrid are a little open to interpretation. Personally, I’d say they’re more versatile than the semi-slicks many of us shod our tarmac bound mtbs with during the late 90s and early 2000s, but hardpack and unmade roads are the limits of their off-road capabilities. The maximum payloads are 90 kilos for the 26x2.0, which for someone of my 70-kilo build, gives scope for lightweight/weekend touring.  I'll hold off any firm conclusions for another 200 miles but I'm growing very attached to their quick, yet dependable personas