Fact & Friction

180 miles in, and I’m bonding with the 38 tooth Raval oval ring, the improved mid-range has given a better spread of power, improving cruising and climbing prowess quite considerably. It’s worth noting that oval/elliptical rings require careful consideration and favour a smooth, relatively high cadence. For these reasons, I (personally) would be inclined to shy away from them on a purebred MTB. 

Otherwise, there is the temptation to turn a taller gear than ideal, which can result in a jerkier pedaling motion, inducing precisely the knee and back strain the concept was intended to alleviate. Shimano’s bio-pace was originally marketed at tourists and time Triallists but over time, marketing shifted to novice and returnees. By the mid-90s it had fallen out of fashion, meaning decent cranksets with said rings were plentiful and very cheap. 

The Pro Gold Pro ink chain lube is also proving a reciprocal compliment to this setup, although I’ve decided topping up around the time its ¾ spent stage (150 miles, or so, during a dry spell) is the best means of appreciating its qualities, rather than allowing it to become a thin film. I’ve also applied it to the fixed’s new KMC HL710.  

I also discovered, on our first outing, that I’d got the tension too tight-this wasn’t obvious on the work stand but immediately apparent, when I headed out, on Sunday morning. It remained a little agricultural, so I’ve switched back to the PC1, using the Topeak All Speeds Chain Tool https://www.sevendaycyclist.com/topeak-all-speeds-chain-tool. One thing led to another and in this instance...A lower headset bearing strip, cable strip and re-lube, then I found another 35mm Zilent https://www.sevendaycyclist.com/vee-tire-co-zilent-mark-2-tyres, so popped that up front.   

Elsewhere, Redshift Sports have sent me their Shockstop Suspension Seatpost. Available in either 27.2, or 31.8mm diameters, it’s likely to sit pride of place on the Holdsworth. Not the most obvious choice perhaps, given the bike’s minimalist “enough parts to make it stop, go and handle in good proportion” persona and those relatively compliant plain gauge 531 tubes but we’ll see...Since we’re on the subject, here’s a seatpost overview...https://www.sevendaycyclist.com/a-guide-to-seatposts  

Set up is more involved than some, so set aside some time to familiarise yourself with the instructions- their youtube video is particularly insightful. It’s pretty low maintenance from then on. No need to lubricate the moving parts (although the internal preload spring may require occasional re-greasing) and obviously, regrease the post periodically, if you are pairing it with a metal frameset. 

Elsewhere, Buff has sent me their new, improved original Buff, which is now made from 95% recycled Polyester and their Pack Bike Cap. Pleasant, funky and very welcome surprises.    

https://www.facebook.com/sevenday.cyclist/videos/2275936309368820/ 

Roads remain quiet with most people broadly adhering to the UK’s lockdown policy-at least in this part of the South East but there’s a palpable, simmering restlessness. I can envisage the present administration banning all exercise, and that includes going out, into the garden. (Yes, and you thought the turbo trainer would sort this!)  

However, there are two potential scenarios (a) They won’t since they will not want to experience a backlash at the ballot box (b) People will simply flout this in bigger numbers. Indeed, many will argue an under-funded police force will not have the resources.  Therefore, even with drone and similar remote technology, enforcement, beyond major cities, will prove extremely difficult. My hope is that people will behave sensibly and responsibly, without recourse to further curbing of freedom.  

If you do fancy a read, this link will take you to a book review “The Story of A Bike” The Lotus 110 bike and its 108 predecessor https://www.sevendaycyclist.com/the-story-of-a-bike 

Heavy Duty

The present lockdown is presenting considerable challenges for everyone. Stoicism, riding and creativity are my coping mechanisms. Broadband and similar connectivity are also creaking under the strain, presumably as there’s unprecedented demand. In my case, I'm also at the very end of this line. 

Experiences with standard (and otherwise very serviceable) track chains, such as this SRAM PC1 have led me to conclude that beefy ½ link track types are the best fits for me and my fixed gear builds. Models such as the PC1 and this Passport Elements Anti Rust Chain https://www.sevendaycyclist.com/passport-elements-single-speed-chai  are pretty good choices for bikes with single speed freewheels but fixed transmissions are subjected to greater stresses. 

Traditionally half-link chains were aimed at riders of conversions (i.e. geared framesets that have been converted to fixed gear use), where getting chain tension/length just right can be particularly tricky. There’s a lot of conflicting debate regarding their benefits and indeed, otherwise.   

I’ve switched to this KMC Kool HL710. White isn’t the most obvious colour choice but neutral enough and going for the proverbial song.  Before its arrival, I discovered my fixed gear winter/trainer’s rear Schwalbe Marathon GT decidedly flaccid.  

A flat, though thankfully fixable. However, the GT’s casing was starting to wear a little flat in places, so I took the opportunity and swapped it for this Vee Tire Co Zilent. https://www.sevendaycyclist.com/vee-tire-co-zilent-tyre . 

This one is a 35mm section, though seems fractionally narrower than the Schwalbe, which isn’t necessarily a bad thing either-gives a little more breathing space within the chainstays. The Zilent are a similar breed of tyre. One aimed at e-bikes and commuters.  

In common with the Schwalbe a two-layer puncture repelling armour. Works to the same capillary principle, pushing sharps out, before they can nick the tube. Operating pressures are a little lower, ranging from 35-65psi, whereas the Schwalbe Marathon GT go to 85 psi, the 42mm Zilent has a range between 45 and 80 psi).  

The Zilent2 https://www.sevendaycyclist.com/vee-tire-co-zilent-mark-2-tyres was devised upon discovering people were using the original Zilent for long-haul touring-something they wasn’t intended for and resulted in sidewall failures.  Up front I substituted the sprightly and compliant Soma Fabrications Shikoro https://www.sevendaycyclist.com/s  for the Continental Contact plus.    

I’ve gone for the 37mm- gives a little extra clearance upfront (not that it’s ever been an issue with the 42mm). The 37mm Contact Plus run between 65 and 85psi, whereas the Shikoro range between 35 and 90psi. 

Sure, the Contact Plus are a very different tyre, compared with the Shikoro. Closer to the Vee Tie Co Zilent, in fact, which should make for a very reliable, reciprocal mix. 

Despite the country being on “Lockdown” I’d be surprised if the police have the resources to enforce, beyond densely populated towns and cities. I’ve noticed a pronounced spike in the amount of fly-tipping. Discarded (broken) beer bottles also seem more prevalent and would also explain my switch. 

Shipping the Contact aboard the front Halo Evura https://www.sevendaycyclist.com/halo-evura-shutter-precision-sl9-dy hoop proved unexpectedly challenging though. It claimed two basic resin levers and almost sent a very nice Pedros’ over a 6foot fence. In the end, this VAR won the battle. Suffice to say, I’ve stashed that in the Carradry, in case I should flat by the roadside.  

Not been an issue with these, or their 42mm counterparts to date, although it’s worth noting that, no matter how rugged your rubber, tubes can fail at the valve heads. So always advisable to pack a spare or two, decent tyre levers and of course, a pump. I carry two mini pumps, and three tubes just in case.  

Overkill in some respects. However, one tube may get another stricken rider home and they consume nominal space in the SQR tour and Carradry bags. Oh, staying with tyres and inflation, Steve’s been quite impressed with this Zefal Profil Max FP60 Z-Turn Pump https://www.sevendaycyclist.com/zefal-profil-max-fp60-z-turn-pump 

This lovely CNC machined ring arrived from Raval. Made from CNC machined stainless steel, the climb down from 42 to 38 teeth gives a range between 34 and 89 inches. True, I sacrifice a little top end but gain a bit more mid-range, which is arguably more practical/efficient, given the bike’s design brief.  

Oval rings are to some an unusual, arguably controversial concept that comes in and out of vogue. Shimano Bio-Pace was the one most remember but several brands, including Stronglight (Bio strong) and Suntour (Oval tech), joined the bandwagon. However, oval rings have been making a quiet but steady return since 2014. I’m looking forward to racking up the miles on ours.  

No, not nostalgia talking (although it was popular during those halcyon days where I discretely read the cycling press and ogled high-end bikes, from my desk, while world-weary teachers feigned interest in us and in some cases, the curriculum being taught).