Road Cycling

For all the bad rep that GP5000s TR get for being difficult to fit I've never had an issue with them. Which makes me reluctant to change brand
 
GP5000s TL are a 2 man job, using all the strength a cyclist's upper body can bring to my old rim bake bike. The TRs on my wide disk brake wheels I could do it solo with a tyre glide and reckon someone with less soft skin could just about do it without a tool.



I have been hiding from hay fever this weekend (just been doing a 1 hour early morning spin to keep my streak up and legs spinning). I decided it was a good time to put the roof rack on my car. I hope it is secure at motorway speeds... I have a trip away with a few mates booked next month and need to get 2 more bikes on there...


BLpGEkg.jpg
 
Last edited:
For all the bad rep that GP5000s TR get for being difficult to fit I've never had an issue with them. Which makes me reluctant to change brand
i had contis and had no issues like that...them pirelllis zero were a serious pain...

want new wheels but now i dread future tyre change :cry: :cry:
 
i had contis and had no issues like that...them pirelllis zero were a serious pain...

want new wheels but now i dread future tyre change :cry: :cry:
It’s usually a combo of both rim and tire… my Hutchinsons fit fine on my elite carbon wheels and are an absolute pain on my mavics.
 
It’s usually a combo of both rim and tire… my Hutchinsons fit fine on my elite carbon wheels and are an absolute pain on my mavics.
wanted to try hutchinsons blackbird...by mistake ordered tube ones ... had to return and as they had no 32s anywhere went for Zeros
 
Never had an issue with any tyre on any rim. The only time I've been frustrated is trying to deal with tyre inserts on MTB tyres. Every time a tyre is a struggle on a rim its because I was trying to force it instead of using the proper technique.
 
Only issue I've had is with gravel tyres and being able to get them off the rim WTB Nano were a nightmare, luckily they were dead so ended up cutting them off.
 
I'm 181.5cm tall, ~87cm inseam, with an arm span of 186cm (ape index of 1.025 - I'm all limbs)

My Canyon is a Medium and it feels ever so slightly too long. Gemini is adamant that a size 54. When I walked into Specialized the guy there said I'm a 54 without measuring me but lots of places online say 56.

What say you, OC hive-mind? Do I listen to the internet or give in to the AI/LLM overlords.
The Canyon does look a bit bigger than the Cima (was it this one?) - https://bikeinsights.com/compare?geometries=600c6e5286ad0e0017190528,67ce8e5aaa8c97001b264018

Especially the bike shop guy taking 1 look and saying 54cm. He'll have a lot of experience of fitting people by 'eye' then sizing them up on a frame afterwards. That initial 'look' - but that will be specific to the brands he deals with... Don't know Evolve well enough to hear of any people talking about sizes to know how they compare - like you would get with more well known like Canyon or Specialized. Have heard elsewhere Canyons size up a bit bigger than others... Consider you're quite tall for a M (nearly 10cm taller than me) but you then wouldn't need to go 170mm cranks like I did, the standard 172 would be fine - or even get 175mm, then with your long arms maybe longer stem... You might even have a better fit on the 54cm Tarmac than me where I'm likely towards the lower size for it.

I guess it all depends on preferred position too. My Ican bike is an XL and a 58" frame, and it always felt a little small for me, with me being at the very top of the suggested height range. My Velouria is massive by comparion, feels great with a short stem and i'm right at the bottom of the height range for that.
Yup so much of 'fitting' is being in the right 'bracket' for a size. Only when the sizing is harder when you're on the edges of that where a fit gets more important...

I did it for my Tarmac, as I didn't find my M Giant or 54cm Diverge big, but wondered if going smaller due to my short legs would get me more aero (barely any saddle drop on the others) for a new 'faster aero summer' frame, but the fitter determined torso right for a 54cm - just the short legs go shorter cranks for a better fit. The lower front end helped with being more aero and my flexibility good enough to stretch out for it.

Riding home yesterday I hit a random bump in the road and heard a massive cracking noise. For sure thought I had killed my bike but everything seems to be all good. Nothing visible at least but now in the back of my mind it's going to fail on me mid ride one day :o
Erk! Wheel/spoke/nipple? Could be grit/dirt around a bearing/join somewhere and you just heard a snapping from that? Sound really resonates, I've got very used to the noise with my Diverge as the BB shell is quite worn so get muddy water in it leads to grit in there. But noise was very similar the ~30 days I had before the Shimano R8000 cranks split al-la Shimano crank recall :)

And just to sanity check, 25mm tape width + about 80ml of sealant per wheel... valves are 60mm but that's standard anyway.
What tyres, 80ml would be a lot for a 28-32mm road wheel. Maybe ok in a 35-40ml? For my winter wheels in a rear 30mm maybe I'm upto around that... I do around 50ml and then top up another 20-30ml when I have my first leak in the rear. Sometimes another 10-20ml after a few months to get a bit more out of them before I get time to strip them in the better weather, to get 6-8 months out of it...

Cost the equivalent of 200 quid. Reaping the benefits already. Well worth it.
Pretty cool to get a mobile guy to visit with a full setup, but guess par for the course where you are? Around here every town seems to have a fitter, but YMMV. Many riders I 'know' 50+ miles away seem to travel to the local guy I know and use. But he is well recommended & reviewed so word of mouth goes a long way, certainly around here... Considering I found 3 fitters mentioned for Junglist in and around Bristol, which a couple seemed to review well. Then 2 riders I know from Cheltenham direction (35mi) which @Shadowness knows, a Zwift clubmate from Bath (70mi) and a Tri/TT guy from Chippenham (60mi) all used my local guy, when Bristol would have been much closer/quicker for them all...

Hole too small
Pressure with mini pump too low
Sealant never pushed through the hole
Possibly all of the above, but much of it could be the sealant volume - it not enough 'liquid' to get forced out with the low pressure, but if you couldn't see any leaking out then could just be dried up? Many of them can get pretty 'gloopy' when old (Stans/Vittoria/Orange) and it just doesn't move around the tyre anymore. Others (like the Muc Off I prefer) stay very liquid, then when old just don't seal very well. Get to 'see' the hole pretty easily, then it'll sit there bubbling away like you've used some semi-skimmed to fill it and it just doesn't seal...

I keep going back to my Sweet Protection basket but just not sure I can/I wan't to justify £340 on a helmet and some glasses at the moment. It's a lovely lilac colour though haha
Oooosh, linky? Not heard of Sweet Protection mentioned before, then it's popped up in my socials the last couple of weeks?

Anyone know the helmet Ted King is riding in this season? Like the look of that one... Need a new aero/fancy/summer lid. Check that ride out - 280W for 9 hours?! Sheesh. Class never fades.

Edit* Cycling comp installed last night too, Xoss G+, GPS, barometer, BTLE etc and the app syncs quickly. Nicely built and comes with the rubber case and screen protector and mount kits.

1777637330133.png
2009 Cateye called and want their cycling computer back :D

Happy to share our planning / logistics etc if anyone fancies it in the future.

Mega ride mate, well done and something mega to cross off!

Bunch of Zwift friends did Amstel which I'm seriously considering doing next year, so would be quite interested in your logistics & planning. But you drove over didn't you? I think I'm going to catch the train... Got a guy from Midlands who caught Ferry over but I wonder just how hard it is on the Eurostar...

Only a couple I 'know' did LBL & one (Oli) was under 10h but he would have been with this club & was training towards smashing it. |Other guy (Bert) was similar time as you, he was with a couple of friends and mostly there to enjoy it!

Weird day though as my average power for the first 6hrs was around 220w when normally my lunch rides are only 180ish, but I wasn’t going very fast.

Only 2 small mechanicals. One was the rear tyre losing air slowly and needing pumping. Then the other was my own fault. I’d loosened the seat tube to drop it when it was in the car. However it felt seized so I left it. Forgot to tighten it back up. Hit a few rocks and it slammed down!
Mega ride mate, well done! Chuffed for you to have a good day after all that build up! To make the time-cut to do the full 360 as well, kudos!

Only 2 mechanicals - so many others have a lot more! Hope the seat tube didn't damage anything. How did your fuelling go & especially hydration? Didn't hear much about weather conditions so figure it wasn't a brutal one, but some of Calpe had a bunch of rain the last month didn't it?

HATE changing tyres..just hate it...
now got one stuck on a valve and cant get it off..so cant pump it :mad:
bike shop might be needed...
pure talent on my end LOL
Stuck on a valve? Not sure what you mean...

Certain tyre+rim combo's just do not work. I've found - generally the older the rim the harder it is - you enter into the realms of specific brands of tyres just being 'better' together than others for mounting. Think just the newer the rims (+tyres!) the closer to ETRO standards they are so more likely to be trouble free. But there will still be certain combinations easier than others, my old Zipp 30 Course almost anything is hard to mount. Newer Rovals, Fulcrums, Zipp 303 S & 404 can mount anything and several of them by hand. Even using tube inserts on my 303 S and 404, both with Continental GP5000 STR the 404 are easier than the 303. But both are worlds away from the hours, injuries and damage caused from doing GP5000 STR & Hutchingson Fusion5 on the Zipp 30 Course, or Continental GP4Seasons on Giant/Shimano alloys. My Zipps really show the ~5 years between rim development (2015 - 2020) - sure enough the 30 Course (2014 design) are not shown as ETRO (+painful) when the 303 S (from 202) do and are totally different for fitting...

But the Zipp 30 Course mounted Pirelli P-Zero & Specialized Roubaix fine for those years, those tyres just stretched better & mounted easier, tough but fairly standard - just a better combo. On par with older tyres on alloy 17/19mm rims & tubed 25mm's - I just think many riders who came to cycling later on than say, 2018 just never experienced some of the early issues we all went through when we started 5 years earlier! I can recall club rides 3-4 hours long with maybe a dozen riders with everyone on tubes and being stopped 3-4 times for punctures would be common. It was just normal to be well practiced in mounting tyres, rather than now only doing it a handful of times per year (if you're unlucky)...!
 
Last edited:
Possibly all of the above, but much of it could be the sealant volume - it not enough 'liquid' to get forced out with the low pressure, but if you couldn't see any leaking out then could just be dried up? Many of them can get pretty 'gloopy' when old (Stans/Vittoria/Orange) and it just doesn't move around the tyre anymore. Others (like the Muc Off I prefer) stay very liquid, then when old just don't seal very well. Get to 'see' the hole pretty easily, then it'll sit there bubbling away like you've used some semi-skimmed to fill it and it just doesn't seal...

no sealant is very fresh, peatys fibre one so well recommended and I in theory put more than recommended in a 45c tire. I think it must've been the pressure, soon as it hit 35psi it sealed up and not leaked since. - 35psi funny enough on 45c seems quite hard to get to with a mini pump.
 
The Canyon does look a bit bigger than the Cima (was it this one?) - https://bikeinsights.com/compare?geometries=600c6e5286ad0e0017190528,67ce8e5aaa8c97001b264018

Especially the bike shop guy taking 1 look and saying 54cm. He'll have a lot of experience of fitting people by 'eye' then sizing them up on a frame afterwards. That initial 'look' - but that will be specific to the brands he deals with... Don't know Evolve well enough to hear of any people talking about sizes to know how they compare - like you would get with more well known like Canyon or Specialized. Have heard elsewhere Canyons size up a bit bigger than others... Consider you're quite tall for a M (nearly 10cm taller than me) but you then wouldn't need to go 170mm cranks like I did, the standard 172 would be fine - or even get 175mm, then with your long arms maybe longer stem... You might even have a better fit on the 54cm Tarmac than me where I'm likely towards the lower size for it.

Yeah that's the one. The Medium comes up similar to a 54 Tarmac. Having given both ChatGPT and Google Gemini pretty much all my body measurements, saddle height and desired out comes both have decided that for that specific frame I should be getting a medium with 110 stem. It advised that due to my shoulder width I go no narrower than 40cm bars (which I'm currently using without issues) and that with my legs I'd actually be better suited on 165 cranks.

So the fact two different LLMs came to the more or less the same conclusion (I think ChatGPT wasn't against 38cm bars but advised against it. Google was a flat out no) I've now got all my parts pretty much set out for me. Now the hard part is getting the money to order it! Decided I'll save some money and continue with my Zipp wheels and Assioma Duos (I only wanted to change those as the new ones look a bit sleeker) which shaved almost £2000 off the price I was expecting to pay. If my maths all add up correctly the build should be UCI illegal ~ 6.61Kg including the pedals/bottle cages and computer mount! So I'll have to find another excuse for why I am slow up hill :p

Erk! Wheel/spoke/nipple? Could be grit/dirt around a bearing/join somewhere and you just heard a snapping from that? Sound really resonates, I've got very used to the noise with my Diverge as the BB shell is quite worn so get muddy water in it leads to grit in there. But noise was very similar the ~30 days I had before the Shimano R8000 cranks split al-la Shimano crank recall :)

I'm hoping if anything is broken it's the wheels as they have lifetime warranty. But still not identified what could've made that noise. It was loud enough it made me think "Oh crap what was that" but nothing felt wrong in the last 5km home. I haven't been back out on it since but have done a few Zwift rides and not noticed anything unusual. Hopefully it was a stone or something hitting the bike and making a loud noise


Oooosh, linky? Not heard of Sweet Protection mentioned before, then it's popped up in my socials the last couple of weeks?

This is the one I've had in my basket since last year! The lilac colour is new though and, being the tart that I am, I quite like the look of it
 
Mega ride mate, well done! Chuffed for you to have a good day after all that build up! To make the time-cut to do the full 360 as well, kudos!

Only 2 mechanicals - so many others have a lot more! Hope the seat tube didn't damage anything. How did your fuelling go & especially hydration? Didn't hear much about weather conditions so figure it wasn't a brutal one, but some of Calpe had a bunch of rain the last month didn't it?

Cheers. Yeah some guys had some real problems. I rode with one guy who's handlebar had snapped and he was using 2 twigs and electric tape to hold it together. Can't imagine how terrifying that would be on -15% rocky descents :eek:

Fueling was on point. I bought a hydration vest from Epoc the week before and it was massive. I'd also bought Fidlock bottles as the new framebag caused issues with normal bottles with not enough space. I never realised how tricky they'd be to use and should've bought them ages ago and practiced, as it was i had to only drink from them when stopped. Luckily a 1.5l bladded with carb mix sorted me out. I had a small lull after i'd ridden with one guy and was distracted and probably didn't eat right for 2 hours and generally felt i was struggling to breathe. Think fueling and dust in the air were combining to cause issues, but that passed when i got some pasta at a food station.

Weather was decent. It rained Thursday which caused it to be a bit sticky, but nothing too major. Calpe (and around me) has been awful Jan-March, but it slowly seems to be turning decent now
 
no sealant is very fresh, peatys fibre one so well recommended and I in theory put more than recommended in a 45c tire. I think it must've been the pressure, soon as it hit 35psi it sealed up and not leaked since. - 35psi funny enough on 45c seems quite hard to get to with a mini pump.
Oh weird, yeah sounds like you need to up the reps in the gym for more tyre pressure from ya pump :D


This is the one I've had in my basket since last year! The lilac colour is new though and, being the tart that I am, I quite like the look of it
Thanks for the helmet, neat! Yeah that aero idea is something I've even considered, aero vent covers which would also work as warmth/rain covers for winter commuting! But then wouldn't spend £300 on a helmet to ride my commute :D

You have more belief in AI than me... But being in IT seeing it too many places where it goes wrong. Like getting a plug wiring wrong. Or telling people to walk to the car wash to wash their car...

Cranks is a hard one, thought your inseam was 'tall'? Or the opposite? Hell, probably need to measure mine properly for comparison, but I'm a 32x32" in jeans riding 170mm cranks if that helps! :D

Cheers. Yeah some guys had some real problems. I rode with one guy who's handlebar had snapped and he was using 2 twigs and electric tape to hold it together. Can't imagine how terrifying that would be on -15% rocky descents :eek:
Yeeeaaahhhh that's what the Traka is all about!

https://www.strava.com/activities/18336368729 - Harry Tanfield 11h including crashing & lots of flats. Check the pics, made aero fairings for a suspension fork! Recons he did 380W NP first hour, crazy!
 
The tyres are 40-622

I think I put enough in but am away currently so will check if it's all good when I'm back.
 
Back
Top Bottom