SCX #5: Irvine Beach

Last weekend was my first time racing at Irvine Beach. I’ve been fascinated by it for a while with it’s sandy sea-side location, but schedules and illness have conspired to keep me away until now. The course did not disappoint – a climb leading into a lovely swoopy bowl section, then some zigzags before the main event: the big dipper. This is like riding a half-pipe .. a really big half pipe. You literally cannot see the bottom as you commit to your line, and the first time I went over it on my warmup lap was a life affirming moment! Still, the only thing that makes sense on stuff like that is to point in a straight line, look into the distance, stay away from the brakes and trust that all will be well (+ that noone else brakes!). From there, there was a couple of off cambers before a fast downhill to the main run-up. This was where I made up most ground – people would coast the last part before the runup, whereas I’d stay on the gas and then be able to run up the hill faster (long legs!). Final part of the course was on sand which, to be honest, was not a big deal because a compacted line quickly emerged on the left side which left only one section towards the end requiring a bit more technique. Finally, there was a bit of flat grassland. As ever, I made the mistake of thinking ‘phew, a bit of a rest’ on the flat and losing time then having to regain position on the uphills and more technical stuff later. Plenty of grip all around, so was on the Conti Cyclo-X King tyres at 35psi.

The race start was chaotic. I made sure I was at the start early, but in the post-gridding shuffle up I ended near the back and was 81st going over the line. Gary McRae, one of the top riders, had a mechanical immediately after the start, and there were several topple-over accidents in the first few corners. Fortunately, as we got to the climb there was a nice free lane up against the right tape for me to power past the crowd and I gained over 20 places on lap one. By the third lap, I got passed by (I think) Peter Ferrier and hung onto his wheel for most of the rest of the race. I’d lose out on the flat/power sections, and gain on the hills so it netted out equal. On the last lap, Martin Steele caught us up. We came out of the final sand section all together, but Peter and Martin powered away and pulled a gap so I sat up and watched them duke it out over the line. I finished 58th out of 108 (54%) which I’m pretty happy with, given that it was a fast/power course.

I checked on Strava to see where I lose most time versus the top guys. The basic answer is, of course, “everywhere”. But the biggest deficit is on the flat grassland (16mph vs 13mph). Climbs, twisty bits and even off-cambers are okay.

Next race is at Lochore Meadows – completely flat and traditionally a hanger-snapping mudbath. So, plan is to have a couple of days rest (at least until I have time to de-sand my bike) and then do more Trainer Road to work on sustained power.

SCX #4: Dunfermline

Last Sunday was round 4 of the Scottish Cyclocross series, a new course at Dunfermline. The forecast was looking okay, with rain forecast to move in after all the races had finished. Unfortunately, the forecast wasn’t very accurate and the rain arrived before my race started.

Cyclocross is become incredibly popular in Scotland. For the first time, entry to the vet40 race was closed early as they’d reached a maximum 160 riders. I’d been intending to leave it to the last minute in case I got a cold – normally a sane plan given that races cost about £16 to enter. But this time, it meant I lost out. Fortunately, the ‘senior’ race, which I’d been doing last year, turns out also to be the ‘open’ race. I think you have to be 18-39 to compete for points, but the race itself is open to anyone. And, with ‘only’ 100 entrants, I managed to secure a race place.

I’d set up my bike with mud tyres which was a sound plan, as even the short roll to the sign-on desk was a mud bath. I registered, and came outside to find my bike had a front flat. Pretty confusing, since there was nothing flat-inducing on the ride in. Back to the car for a quick repair, and I found a pin hole in the middle of the inner tube. I think I must’ve picked up a thorn on my test ride the night before, which then fell out in the mud. Regardless, always better to puncture prior to the race then during it.

I’m super-cautious about tyre pressure, since I hate DNF’ing due to punctures. At 74kg, and with clinchers, I usually ride between 35 and 40psi. This course had one steep ramp which hammered the bike, and a few kerbs, and so I went for 38psi. In hindsight, I should’ve tried lower on my sighting lap, but having already punctured, I was a bit rushed.

The start was wet + cold, with a lot of riders being gridded before everyone else shuffled in and waited for the race to kick off. The course was a mudbath by this stage, reminiscent of my first two cyclocross races at Plean/Mugdock in 2011.

I’d looked at my lap times in the vet40’s this year, and projected them onto the laptimes in the senior races, so I knew which riders were likely to be going at a similar pace to me. After the initial start chaos, I dropped in behind Mr Two Wheel Army, easy to spot with his green race gear. He gained about 10 places at the chicane by running round the gridlock, and then I got a large branch wedged in my front spokes after the barriers which dropped me back. I gradually caught up with his group over the next two laps, gaining on the technical stuff and losing out by trying to ride the deep mud on the start straight whilst he was running it.

After following for a lap or two, I got past somehow (I think maybe another riding/running split decision) and pulled a bit of a gap. After that, I was fairly heads down passing a few more people, but mostly preoccupied with line choice and figuring out where others were riding.

I never figured out how the fast guys were riding the start straight. I’d run the first part, then ride the hairpin and most of the return leg before running the off camber. I’d like to believe that they were achieving this due to fancy gear (low tyre pressure, or tubular tyres) or perhaps physics (maybe if you keep above some critical speed, you glide over the mud rather than being sucked down into it). But I rather suspect that the answer is just raw power/torque.

I got lapped by the lead rider at 30 minutes, followed by a bunch including Rab Wardell, who lead the Dirt School class I did earlier this year. Rab apologised for something as he went by – not sure if he nearly slid into me or what – but it never fails to impress me that the fast guys are always super polite to the less quick racers they’re lapping.

The mud was causing chaos all around. One guy with an orange helmet mis-stepped after the run up, tripped over his bike and did a full-body slide into the mud – he came up smiling though. I also passed a marshall who was helping a racer extricate his foot from the spokes of his rear wheel.

I finished in 56th place (58th percentile) which is a bit better than the 65th percentile I’d predicted pre-race. I was pretty pleased with my racing. Doing Zwift races has improved my race endurance a lot, and I can do a full hour at race pace without flagging towards the end. I’d love to know how to ride the deep mud like the fast guys, and with Lochore Meadows coming up in early December, I’ll probably have another chance to try. My bike handling, which was under par at Strathclyde was good, and I actively enjoyed the course with all it’s challenges.

Afterwards, I compared my gps trail on Strava with some of the leaders. My best lap was 8m48s, where the winner managed a 6m40s lap. I lost an entire minute on the start straight, and the other minute on the muddy switchback field. The rest of the lap – through the second field, the trees and the bottom field was at basically the same pace. So there’s a lot of time to be gained in the mud. But then, maybe that’s just where the raw power of the leaders shows up.

SCX #3: Strathclyde Country Park

Strathclyde Country Park today and, after last year’s torrential downpour the dry sunny weather today was very welcome. I missed round 2 at Knockburn Loch as well as the best part of two weeks of training time to winter bugs, and with the way things worked out I spent more time on the turbo trainer than on the road and very little time on mud.

All of this neatly presages my performance in the race today. The upsides: my fitness felt pretty good, my lap times still looking consistent, and I’m better able to recover from efforts without needing to back right off. For once, I started ahead of my final ranking, gradually drifting down the field rather than spending the race passing people. I stuck with a group for a while, losing time on pedalling sections but gaining on technical stuff. The downsides: have spent a lot of time on the turbo, I’ve forgotten how to go round corners. I failed to nail any of the higher speed turns, going offline and losing precious momentum and places time and time again. And then on lap 3, my front wheel slid out on the offcamber and I banged my knee then, after a brief bit of running I remounted to find my chain was off, Wout-stylee. It was easily fixed, but with all the action and my banged-up knee I lost 40 seconds on that lap.

Overall, 69th out of 146th starters (47%) so another top half finish. The 40s lost on my crash lap were important, since 40s faster would’ve put me ten places higher. That’s kinda positive – my cornering today was shocking but it’s normally much better.

Next weekend is the Dunfermline round, no idea what the course is like. Plan is to steer clear of winter bugs, do a bit of turbo and a bit of technique. Medium-temr, it’d be nice to finish top 50 – which, today, happens to coincide with the first non-lapped rider, another decent goal. But that requires being about 5% faster, which is easier said than done!

SCX #1: Callendar Park

A beautiful sunny day to start the 2016/7 Scottish Cyclocross Season. The start line was in full sun, so the usual “trying to stay warm” problem was replaced temporarily with a “trying not to overheat” problem.

The Callendar Park course is fast and swoopy, with no long/steep climbs and very little in the way of severe “technical” stuff – so sustained power is the order of the day, not my strongest point. But with 2016 being the first year I’ve had a turbo trainer, I was hoping to see some improvement in power. I think I got that – my lap times were the most consistent I’ve every managed throughout a race. Overall, I wasn’t that much faster than last year but I gauged my effort better rather than going out too fast and blowing up later.

I got to the grid a bit late, after foolishly trying to squeezing in one extra practise lap whilst everyone else sensibly headed straight for the grid, thereby leaving me in maybe 110th place out of 140 starters. I spent the first two laps passing people (16 on first lap, 9 on second) and avoiding the midfield crashes and tangles. Then it was a case of head down, chase down the next rider, rinse and repeat. I tried to get some rest by drafting people on the straights, squinting to avoid the gravel spray from their wheels. No crashes, only a bit of elbow-to-elbow clashes on the steep climbs as people tried to make progress.

I started the last lap drafting another rider in green, with noone close behind us. I had enough in reserve to decide on my Cunning Plan to take the place. I pounced on the steep muddy climb and made the pass, but went a bit wide at the hairpin and lost it again. More drafting to save energy, and onto plan B which was to attack at the steep hill before the zigzags. I was alongside at the top of the hill, but on the outside line for the next corner and so had to drop back. Plan C was to draft him the rest of the lap and outsprint him. I accelerated past on the second last straight so I was in pole position going round the final hairpin. But as we started to sprint, I went to change into my big ring and .. disaster .. it wouldn’t go. I carried on up the gears in the small ring until I was spinning like a hamster wheel and tried again to change but by this time I’d lost a few metres and it was all over. A fun end to the race, and with hindsight I think I got out-race-crafted in the end.

This was the first race where I felt my effort was constant lap-to-lap. I had a little dip in energy midway through the second last lap, but by that point the end was in sight. I think I have the turbo trainer to thank for that. Since I don’t usually ride with others apart from at races, it’s not easy to gauge or maintain hard training efforts out on the road, so I’m finding the turbo trainer is good for race-simulation efforts – even virtual racing on Zwift (tried it once so far).

Final position was 63rd out of 146 starters, so 43rd percentile. I think that’s my best finish yet, relatively speaking. With the turbo trainer, I feel I’m in a better position to work regularly on improving power, which has always been my weak point (lacking a roadie background) and so high hopes for the rest of the season.

2016/7

It’s that time of year again, cross is coming.

For me, it’s the usual conflict between structured organised training vs chaos of winter/autumn bugs and work travel. I managed to plan ahead this year, and did all required work travel by early September with the plan of having two clear weeks to train to peak. Unfortunately, I got off the plane and immediately caught a bug which mean zero training for over a week, sad times.

Before all that kicked off, in mid-summer I had decided to stop procrastinating and actually buy a turbo trainer. I’ve been considering getting one for years, and having had it for two months now I’m very happy with it. I’d expected that the main benefit was avoiding bad weather and darkness, but actually the quantified nature of indoor training has been very helpful for me too. My main weakness in cyclocross has always been in the road-y ability to deliver high watts for a long time, and so I’ve never done well at flat courses like Dig In. On the turbo trainer, it’s easy to do time-trial simulations, or over/under intervals, or stop-start sprints. All of which hopefully will pay dividends once the race season starts.

But, given that I’m still suffering somewhat from my autumn bug, I’m not sure if I’m going to make race #1 at Callendar Park right now. I cycled to work this morning for the first time in a while, and had to bail onto a shorter route. All this non-cycling has given me time to strip down, clean and rebuild my bike so it’s working better than new. But it would be very sad if I ended up with a shiny bike but lacking the health to race it. Lots of fruit, sleep and fingers crossed that the rest of the week goes better …

Training, numerically

After a slightly ‘meh’ ending to this year’s cyclocross, I thought a bit about how I train for races. The high level answer is “haphazardly”. Like everyone else, cyclocross is just one of many things I do and so I fit training rides in and around the rest of my life. That mostly means using commutes to work and the odd longer weekend ride as my base. I generally try to ride as hard as I can, but that’s pretty variable in practise given Scottish weather conditions, traffic lights etc.

My biggest training success this year was on the Arthur’s Seat hill climb. I started the year doing the climb in about 4m40, and with focused training lopped 45 seconds off that. The hill climb has the advantage of being repeatable and quantifiable, and the only downside is that the wind direction has a large impact.

But while a 4 minute burst of full-on ascending speed is handy (eg. Glentress or 10UTB) it doesn’t help much at races like Dig In At The Dock which is flat as a pancake and an hour long.

To quantify progress, it’s handy to keep as many variable fixed as possible. I don’t have a turbo trainer, so instead I’ve picked two wide, traffic free and usefully long stretches nearby. Rather than trying to “ride fast”, which usually means “ride fast initially and then tire” I’ve decided to do each stretch at a fixed speed. If I complete the distance at (say) 18mph, then next time I ride it at a fixed 19mph and keep stepping it up until I hit the threshold. So far, my threshold for the shorter 1k stretch appears to be around 22mph, and I’m still stepping up through 19mph on the longer two mile stretch.

This isn’t intended as training, per se. The world says that intervals are the most effective way of getting faster. But this approach gives me a fairly constant reference point to see if the other training is having an effect.

So that’s the plan for the sustained-fast on the flat. However, I’m also signed up for the Glentress 7’s this year, so there’s a big need for the ups and downs too. Hence, I’ll be alternating the flat days with more Arthurs Seat loops (or just hill reps) since that’s served me perfectly well for xc in the past. Eleven weeks until Glentress 7’s, so no rest for the wicked.

Digging In

A rather muted end to my cyclocross season this time. I was signed up for Plean but missed it due to illness. I was signed up for BPGP#2 but missed it due to jetlag and illness. I did make it along to DIATD albeit without terribly much training (a handful of 16 mile commutes, one trip to Glentress). My warmup lap was fine, and the course was as straightforward as normal, and just as windy as last year. But on lap 1 of the race I knew I wasn’t having a good day. I ploughed on, clearly destined for finishing in the last few before a front puncture cemented my fate as DFL. And got a sore throat a few days later for good measure.

In previous years, a mediocre day would still have put me maybe 70% down the field. But with the new A/B race format, a slow Andrew in a fast field was only ever going to end one way.

Bit sad about puncturing. I had 45/45psi in my clinchers which, at 74kg, is at the high end. But after puncturing on the cobbles during warmup last year at 35psi, I went safe in last year’s race at 45/50psi. However, on the early laps I stuck to the middle of the cobbles and unweighted on the worst bumps. On the last lap, I remember being at the right side and being too knackered to unweight. I think that’s where the front tyre went. It was the tiniest hole on one side, no thorns or anything, so must’ve been a close thing.

So, lessons learned: actual training required. Usual crop of winter bugs, work travel, family life and evening courses doesn’t leave much time for training. Perhaps I should get a turbo trainer. I certainly came close to buying one this year.

But it was still a fun day, with great support. I’ll try for less winter bugs and less work travel and a little more race prep next year.

Tweaks

One week left before DIATD, and having missed two race (Plean + BPGP) due to illness I’m looking forward to this final cx race of the year.

Checking over the bike today, I found that the rear derailleur is once again not shifting cleanly. It exhibits the tell-tale sign of bad cables – when you click to change down a gear, the derailleur cage doesn’t move.

On my cx bike, this is almost always due to corrosion in the final loop of the gear outer. The gear cable runs bare down the frame, then shielded by outers for the final loop into the derailleur. The top end of that outer cable run is fairly exposed to the outside world, and it seems that water and gunk gets into it easily. Once that happens, no amount of adjusting the gears gets you back to that “new bike” feel.

So, I decided to fix the problem once and for all by rejecting the setup which the bike came with and instead going for a continuous run of gear outer all the way from the derailleur to the top tube. That way, there’s almost no way for water to get inside and cause havoc. Unfortunately, the cable mountings aren’t removable so I had to cable-tie the outers to the frame. The only theoretical downside is increased drag from the extra outers. But in practise this doesn’t seem to be a problem and the gears are shifting perfectly.

So that’s the gears back to 100%. Now I need to work on my pedalling legs …

SCX Lochore Meadows 2015

Main achievement of today’s race – my bike is intact! This is an improvement on last year.

Unlike Strathclyde Country Park, where there is one muddy field, at Lochore Meadows the majority of the lap consists of muddy fields. To be honest, given the recent weather, I was expecting conditions to be much worse than they turned out to be. Yeah, it was muddy – and a very sticky mud at that – but everyone was riding rather than running which is always a good sign. After last year’s terminal mech-crunching I decided to basically pick one gear and stay in it the whole race. Towards the end, as my legs were tiring, I verrry carefully changed down one gear to give my legs a rest. But that was it. My ten speed bike may as well have been a singlespeed. Lochore meadows is flat as a pancake which, given most of my training is cycling up hills, is never going to be great for me. In the end, I finished 41st out of 56 starters (73rd percentile).

It’s not going to go down as my favourite race ever. It was more like an hour-long resistance training session. I like hills, both climbing up and swooping down. I know there’s some skills on display at Lochore Meadows – line choice, cornering, carrying momentum – but the day was dominated by pushing at the pedals to get through the mud. And brute leg strength isn’t really my strongest area.

It was good to chat to a few of the riders beforehand. I’m starting to recognise which of the riders are at my level, and who I need to be chasing after if I want to finish higher up. And it’s great to hear the encouragement which the marshalls, spectators and even the leaders (as they lap you) give throughout the race!

Anyhow, bike is intact and now stripped down and cleaned. Next race is Plean in 7 days time!

Cross Entropy

One thing I’ve learned from a few years of racing cyclocross is that cyclocross eats bikes.

Of course it does. What lightweight machine could possibly survive unscathed through fields of mud, gravely puddles of unknown depth, through rootsy woodland and occasionally being dropped at high speed onto the unforgiving ground?

Good job that I enjoy doing bike maintenance. My chains have speedlinks so I can remove them easily, and deep-clean them in solvent. I like the platonic ideal of perfectly spherical ball bearings gliding across hardened steel races. I love the crisp mechanical efficiency of a clean and perfectly adjusted rear derailleur. C’est brutal, mais ca marche.

But I’m King Canute trying to hold back the entropy of ‘cross. Each race, the damage mounts. Before the mudfest at Strathclyde Country Park, my bike was pristine. Afterwards, the rear wheel bearings were a bit grumbly. They’ve been stripped down, cleaned and rebuilt. The rear gears weren’t changing crisply. I found the rear hanger was slightly bent (from my end-of-lap crash on concrete) and the outer casing slightly gritty. A new straight hanger and everything is happy again (though I need to build a hanger straightening tool). The bottom bracket, new at the end of last season, has a slight drag which puts it top of the “things to inspect after next race” list.

In my first few races, I was surprised at the number of mechanical DNFs. Now I think if you’re starting the race with a slightly dodgy mechanics, you’re just stacking the odds against you. Races are tough enough even on a pristine bike, but they’re no place for bikes with any hint of a mechanical issue.

I can see why local bike shops are so involved in cyclocross. I’m lucky to have the space/time/inclination to do all the work myself. But otherwise, I’d have the bike in a shop every second race to fix all these issues.

Next race on Nov 22nd is at Lochore Meadows. Last year, it was a mudbath. I was on lap two when I felt a thunk. I stopped pedalling straight away and looked down. My rear derailleur was bashing against my front derailleur, and my chain was twisted round by 90 degrees. Race over. Hopefully the same won’t happen this year. Cross my fingers.