Showing posts with label TRP Spyre SLC. Show all posts
Showing posts with label TRP Spyre SLC. Show all posts

Sunday 9 October 2022

Stoppage... AKA Urgent Refurbs








Some lovely rotors and pads arrived from Disco Brakes DiscoBrakes.Com :: Shop :: DiscoBrakes Shop . I wasted no time in removing the long serving and dependable TRP rotor and popping the 160mm Vibe in situ. Cursory inspection suggested my fixed gear winter/trainer’s TRP SLC callipers' organic pads were still passable, so SP PD8 HALO CLASSIC RIM & SHUTTER PRECISION DYNOHUB DISC WHEEL BUILD (sevendaycyclist.com) wheel back in situ. Much to my dismay the next morning, stopping prowess had all but vanished...  

Returning home, closer examination revealed muck and accumulated grime were giving a false impression of ample pad material. These had been in situ for 10 months and judging by their condition, should’ve been replaced after 6, maybe 7. The generally accepted rule is replace once the pad has 1.5mm (about 0.03 in) material left. A quick word about pad material, while I’m here. Organic pads (sometimes referred to as resin pads) have a lot in their favour.  


Commonly made from a blend of Kevlar, Rubber, and Silica with a resin bonding, they are quiet, offer sharper braking, and bed in easily. The compound offers excellent insulation against heat build-up, too, although on the flip side, are more predisposed to fade. A minor, if not moot point on a lightweight bike and rider. However, a definite consideration on a touring tandem, or recumbent for example. They also wear relatively quickly in harsh, or mucky conditions, so might not be the best options for winter riding, especially off-road.  


Now, I had a couple of organic Spyre SLC pads in stock, but Disco Brakes were gracious enough to send me some sintered and semi-metallic pads for testingSintered, sometimes referred to as metallic pads are made from bonded metal particlesIn theory, these will last longer than their organic counterparts, especially in wet, muddy, and gritty contexts. They are less prone to fade, so will work better on those long descents.  


However, compared with organic types they need to “warm up” before reaching optimal “bite”, take longer to bed in, and can be noisier. Now, though not relevant on a cable-operated setup, such as mine, the metal components will transfer greater heat to hydraulic fluids, than an organic variant.  


Then again, they’re much less prone to glazing over and last longer. I’ve gone the semi-sintered route. On paper, these should be the best of both worlds, hence my decision. As the name might imply, these are a mix of organic and metal, so take less time to reach performance, shouldn’t fade on long descents, and last better than organic pads in grotty contexts. I’ve never had any problems with pad glaze, but this can be an issue with organic and semi-metallic models, so we’ll see.  


I stripped and cleaned the calipers since these were coated in oily contaminant and the inner cable was fraying. Having stripped back the Souma leather bar tape Souma Leather Handlebar Tape | cycling-not-racing (sevendaycyclist.com), to get better access to the outer cable and thus route the inner wire through more effectively, I noticed a lot of slop in the Cane Creek SC5 V Brake Lever CANE CREEK V BRAKE DROP BAR LEVERS | cycling-not-racing (sevendaycyclist.com), and its internal resin cable tunneling was also showing signs of wear.


I’d come this far... I exchanged the Cane Creek SC5 for this silver Tektro RL520, which is also designed with V and cable-operated discs in mind. (I’d originally earmarked it for Ursula’s disc brake upgrade but discovered the RL340 would work just fine.)  

Next came a fresh stainless steel inner wire (the last in my stock, prompting a further order).


Cables, pads, and chains are all things likely to fail at the least convenient moment, so well worth having a couple in hand. Overhaul complete and braking is better than ever. It also prompted a more thorough Inspection of Ursula’s SLC caliper and pads.  


No such issues but a reminder for more regular investigation and pad replacement. I’ve fitted the other six-bolt Disco Brakes Rotor to the SD8 HALO EVURA & SHUTTER PRECISION SL9 DYNOHUB BUILD (sevendaycyclist.com) wheel though since it was superior to the serviceable auction site special. Chain and other drivetrain components were also in very rude health, which is a welcome surprise. I’m up to 1600miles on the KMC and on this trajectory, reckon I’ll get to 2,200 before replacements’ prudent. Mick Madgett finished re-building my SL9 HALO EVURA & SHUTTER PRECISION SL9 DYNOHUB BUILD (sevendaycyclist.com) wheel too, so looking set for the winter, now.

Saturday 8 January 2022

Sorting the Small Stuff











Holiday season has been about sorting the small jobs. Some that can be a little fiddlier than first thought, others that subvert trouble, (which would otherwise strike at the least convenient moment). As often happens, one thing led to another. Having popped Ursula back on her hook, I inspected my fixed gear winter/trainer’s TRP Sypre SLC. A quick spin of the wheel and pump of the lever revealed binding pads and a badly frayed able at the TRP caliper’s pinch bolt.  


No deliberation there, time for replacement. Cables are another area where it’s worth spending a bit extra, particularly with discs, in my experience. I’ve gone for the stainless TRP with compression less housing. Much easier to setup, not least since there’s no/minimal cable stretch. Feed through, tension, snug tight, pump the lever ten times...done.  


A close friend and I were recently discussing hydraulics and why I hadn’t taken that route. I concluded it's more about complication, rather than cost. Sure, there’s no arguing with their refinement, and a well setup hydraulic system can largely be left to its own devices, save for periodic bleeding.  Even so, a cable is more convenient to acquire, especially if something should go pear shaped miles from home/civilisation. Besides, I’m familiar and fond of the TRP Spyre and its marginally more upmarket SLC sibling.   

Since I had to unwrap the Velo Orange Rubbery Bar Tape VELO ORANGE RUBBERY BAR TAPE | cycling-not-racing (sevendaycyclist.com) to perform the cable swap, I took the opportunity to switch to this Ciclovation Grind Touch Grind tape, which superficially, looks almost identical to the Velo Orange.  


To my surprise, density is 3mm, whereas the Velo Orange is 3.5mm but the backing adhesive is superior. A gummy, rather than sticky strip, meaning it’s easier to install and correct, should need arise. It also bodes well, for cable and other replacements, later down the line, when things have weathered a little. Trail distribution also kindly sent me a Lelumia The Beast Trail Light, which boasts a 150lumen day flash and a couple of 100lumen flashing modes, and a 65lumen alt flash.  


All have promise impressive run times- between 4 and 18 hours. Alas, mine’s yert to arrive-seems one was pilfered in the post, so another has been released.  I’ve also received this Topeak Tailux30 USB Rear Light. As the name suggests, it delivers a maximum of 30lumens and three modes, from the twin diodes. 30 hour run time in the flashing mode is also very favourable but only real-world miles will tell.  


Recent years have seen a resurgence in the lumens race, to the point where some lights pump out 450 lumens in daylight running mode. However, I’ve traditionally found 30 lumens potent enough for town, through to semi-rural contexts and adequate for the backroads.  


I’m still fond of the Night Rider Solas and more recently, Ravemen TR30 M Rear Light RAVEMEN TR30M REAR LIGHT | cycling-not-racing (sevendaycyclist.com), which also uses two diodes. Lumens aren’t the only gauge mind. I’ve found Ravemen CL05 Sensored Rear Light RAVEMEN CL05 SENSORED REAR LIGHT | cycling-not-racing (sevendaycyclist.com) and Its CLO6 sibling RAVEMEN CL06 SENSORED REAR LIGHT | cycling-not-racing (sevendaycyclist.com) far more visible than numbers alone suggest.    

 

Ursula clearly got jealous, responding with some front brake squeal/judder. Easily rectified with a quick tweak of the pads, straddle wire and some subtle snugging down. I’d given the pads a glaze check-nothing doing, and I knew the rim was relatively clean- squeaky, once I'd given the old girl and thorough sudsy bucket scrub. I also took this opportunity to slot the Torque Covert7 Crank Multitool into the Deore Crank.  

 

Grot, scuzz, gunge, slurry...Whatever your pet name for winter’s slimy cocktail, there’s usually a fair bit that lodges within the cassette, derailleur and ring(s). Especially if you are using a wet chain lube. I got busy with the cassette claw and some neat degreaser, which scooped away the lion’s share of skanky stuff. 


During the cold, darker months, products like Weldtite Jet Blast Degreaser WELDTITE JET BLAST DEGREASER | cycling-not-racing (sevendaycyclist.com) are potent, super convenient starters. Strong solvents melt the congealed, oily mess. Agitate with a stiff bristled brush, adding some less intense degreaser, scrub and then rinse with tepid water. Blends, including Muc Off Ludicrous AF require a most sustained marinate. MUC OFF LUDICROUS AF CHAIN LUBE | cycling-not-racing (sevendaycyclist.com) 


Household washing-up liquids are something I’d generally avoid but are also surprisingly effective. If you must go this route, say on a cassette, whip the wheel out, scrub with the cassette pointing toward the ground. Rinse, first using warm and then cold water. Rinse any splashes from painted, plated, polished, and anodised surfaces, too.  


As many will point out, citrus degreasers are also very aggressive, so take similar precautions, and even on a plated surface, such as a cassette, or chain, don’t exceed 2 minutes before rinsing and drying.   


Then of course, there’s been tube patching, segregating those which are easily repaired and those, which are essentially bin fodder. Patches and vulcanising solution are pivotal to successful salvage. For me, Rema Tip Top are the best going, although I’ve had good results from Hutchinson, as shown in the photo, and Decathlon’s kits have been a pleasant surprise, too.