Gravitating Toward Fixed Gear Gravel...

 

No great surprise really given my love of ‘cross inspired bikes and escaping metalled roads on them. Yes, I’m leaning toward an endurance event, similar to the dirty reiver https://www.dirtyreiver.co.uk/ . I pondered this, while exploring some long forgotten lanes-the sort just wide enough for a very small car and zero wriggle room.

Shod with those 30mm Vee rubber, ‘cross inspired fixed and I took the centre-strip-an impacted mound of mud, silt and grit in our stride, albeit at a more cautious 15mph-in case a John Deere, or similar behemoth be winding uphill.

At 105psi or so, they’re really quite capable on softer surfaces, though more of a tyre that give a taste of gravel, rather than something I’d deliberately set out to tackle a big event with. Neither, for that matter, is a fixed gear of 79 inches but it was perfectly manageable in these contexts.

Hmm, I feel another reconfiguration coming on. Received wisdom says a gear of 63 inches is optimal for trail biased fixed gear fun but I’m erring on the taller end of 60. We are talking a 700c build and I don’t want to be spinning myself into another dimension, or whipping the wheel around when I come to long stretches of metalled road.

The MK2 Ilpompino’s frame and Kinesis cross fork permits tyres up to 32 and 42mm respectively, without clearance hassles but ideally, a gravel build’s rear triangle will entertain 38mm with room to spare but we’ll see.

Talking of frames, Seven Day Cyclist has a feature on refinishing aluminium alloy, complete with a step by step renovation of a Specialized https://www.sevendaycyclist.com/aluminium-frame-refurbishment   

Back in 2008 I toyed with going the two speed Sturmey Archer route. Frankly, though it has some obvious appeal, especially in the scenarios outlined here, in practice the system was short-lived first time round. It also adds unnecessary cost and complication to proceedings.

Some, scrappy, note pad doodling points towards a 19tooth sprocket. I’d like a decent CNC machined unit. Cheaper elliptical types with bevelled teeth hail from the days when racers would retire an old road frameset from competitive duties and convert it to fixed for winter training.

These sprockets compensate for chain-line imperfections and certainly have their place but below par for a purpose build. Ideally, I’d have another EAI Gold Medal premium (CNC machined unit with straight cut teeth).

A truly beautiful piece of precision engineering but to my knowledge, 18 teeth is tops. More likely that I will opt for a cheaper but extremely cheerful Halo, which is also CNC machined, offered in the magical 19. Think that’s a done deal, for now at least…

Generally speaking, living in a house completely devoid of heat during the winter of 1992, coupled with 30 winters on two wheels has left me with a high tolerance for cold.

That said; I’ve been taken aback by how chilly April and May have been-psychologically, I’m anticipating 15-18 degrees and on many morning’s its barely crept to 7 degrees, less when wind chill is factored in.

For the most part, I’ve been comfortable enough wearing mitts, as has Steve https://www.sevendaycyclist.com/santini-micro-mesh-gel-mitt  but on Wednesday, I resurrected these full-finger Endura Strike from my gloves drawer.

Revisiting them 8 years in, I’m still impressed by the standards of warmth and wicking. Even in relatively mild temperatures they wick much better than padding density and overall design might suggest. I’ve added Respro retroreflective stickers to accentuate hand signals on dark nights and unlit roads.

Elsewhere, I was called in to cover an event the Indian Community Centre in Coventry on Saturday. I’d also like to take this opportunity to introduce some creative wrapping and card making services from Dolly Blue-Blue.

Like what you see? Don’t be shy, get in touch and I’ll pass your enquiry over.

 

 

 

Lubes, Trailers & Fixed Ideas

These samples from WD40 (parent company of the GT85 brand) and Free Parable T2 trailer have arrived on the Seven Day Cyclist test bench. First up we received those iconic red tins of PTFE infused water displacer that I’ve used since 1989. Excellent for sticky mechanisms, reluctant cables and as a frame flush/ masking agent for electroplate. Their degreaser; wet, dry and all conditions lubes arrived a few days later.

In many respects, the T2 is very different from the Yak pattern, although the coupling and swing arm system will be very familiar. High standards of manufacture run throughout. From the neat, uniform welds and bolt-on mono blade. Trailer wheels tend to be something of an afterthought. 

Though anything but exotic, the T2’s is a notch better than many OEM examples I’ve come across, turning on sealed fit n’ forget cartridge bearings.   

Having enjoyed a relatively restful few months, I’ve roused my cyclo ‘cross inspired fixer from its slumber. Back in 2005, it was acquired as a crate-fresh, stock MKII Ilpompino. 

These days, only the rear hoop and headset remain of the original build.

Traditionally, it has followed the fixed gear winter trainer narrative; full-length guards, rack, 28-32mm 60tpi tyres etc. However, last years’ conversion to a new, disc specific front end, two-tone powder coat makeover and a flurry of test kit has seen its incremental evolution. I’d call it a ‘cross/adventure hybrid; detractors would shout Frankenbike...

True; an 81 inch gear is too tall for anything sans asphalt and the rear triangle will only just entertain 32mm rubber. Gone are the Bontrager rack and full length chrome plastics in favour of these lovely 35mm Clement X’plor and Crud Racer clip-ons. Time ATAC4 have replaced the XLC dual sided Ritchey pattern SPDs and some minor, yet disturbing creaks were traced to its drive side, square taper crank bolt.

With an operating pressure between 55 and 90psi; firm centre ridge and soft diamond knobblies, the Clement are essentially mixed terrain tyres designed for unmade/roads and light trail fun.

The words dual-purpose are laden with negative connotations thanks to the awful OEM types that swept in with the 80’s mountain bike boom. These are worlds apart. Ours are the 120tpi versions; they’re also available in a stockier 60tpi casing, which would be my default for winter or weekend touring.

As you’d expect; rolling resistance is greater than a 120tpi 35mm slick, such as Vittoria Voyager hyper or Schwalbe Kojak. Similarly, they don’t slice through soft gloop like a thoroughbred ‘cross knobbly. Nonetheless, they’re responsive and keeping them rolling at 20odd mph is pretty effortless.

Cross-specific rubber when pushed hard on asphalt will squirm. I’ve been scorching along 1 in 7s at 30mph plus and to date; they’ve never missed a beat-rain or shine.

Formative impressions are of an extremely competent choice for riders looking to exploit their cross or gravel bike’s dual personality without needing to swap tyres.   

The same goes for the Crud guards. Aimed primarily at XC mountain bike audiences; these fit in the proverbial minute and have presented a simpler solution up front-especially since I’m using a headlock system in place of the SFN.

The Ilpompino’s mono-stay rear triangle seemed an ideal mounting point, maximising clearance while minimising air resistance-at least that’s my rationale’. On the subject of preload; a game of musical spacers addressed some minor slop in said machine’s OEM, cheap as chips; yet equally cheery FSA orbit.

Despite turning on bargain basement caged balls and slogging through some pretty harsh winters, its’ exceeded my expectations. Good quality grease, regular servicing, full-length guards certainly help.

However, I suspect we’re nearing the end of its useful life and I’ve a cartridge unit waiting in the wings... Elsewhere, good progress is being made with my children’s story collaboration. We’re agreeing new plotlines and Michael J Murphy is working on the visuals.