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Unfortunately these ones can
Unfortunately these ones can only be removed by Allen key. They’ve got a nut, but that removes the body from the spindle (with the spindle still attached to the crank). It has occurred to me that I might have been inadvertently tightening rather than loosening the pedals, but I’m all in on new pedals now anyway.
53/39 – they make ’em tough in Bristol.Looks like I will be checking my cranks regularly from now on !
certainly I’d only be using a 53/39 if I lived somewhere much flatter than Bristol
Me waiting for my new pedals so I can see if I’ve made a mistake with my gearing
Your comment obviously has a vital couple of watts saving over mine.It’s not always a race!
Protip: it’s always a race (unless you get overtaken in which case you’re on a recovery ride, you’ve got blisters, tyres are running flat and you’re worried your crank will snap if you give it some welly)
How are you going to work out which pedals are slower?Obviously, I’ll fit the left from one set and the right from the other set and after a few pedal rotations, I can measure how much one crank has caught up with the other.
Got my new crankset and
Got my new crankset and fitted it and adjusted my front derailleur for the different height (also changed the settings in the Shimano software, though I think the synchro shifts are in the same place anyway).
Unfortunately, my new pedals are coming from Bikester.co.uk and it looks like they’re being sent from outside the UK, so I’ve now ordered a pair from ProBikeKit.co.uk which should arrive tomorrow. I’ll just return the slowest pair.
hirsute wrote:
<gulp>
It seems to be an issue with all their hollow bonded Ultegra and Dura-Ace sets.
FC8000
FC6800
53/39 – they make ’em tough in Bristol.Looks like I will be checking my cranks regularly from now on !
I thought I’d give the gearing a go at least until the crankset breaks again.
I tried putting the crank on
I tried putting the crank on the ground, inserting a big allen key and treading on it (with my foot on the crank), but I think my allen key was a bit cheap and kept flying out of the socket due to poor tolerances. After a few goes at that, I figured it was about time to replace my pedals anyway.
I’ve unintentionally ridden
I’ve unintentionally ridden with a tubeless tyre at around 20psi, but it was very squirmy and the rim bottomed out on ironworks and potholes.
Merlin’s got them in stock:
Merlin’s got some in stock: https://www.merlincycles.com/shimano-ultegra-r8000-chainset-11-speed-102855.html
(I went for 175mm 39/53)
Apparently (after watching
Apparently (after watching HoarseMann’s link to https://www.youtube.com/watch?v=FkEkQV-zK0s&t=181s) that’s due to whether it’s hollow bonded or hollow forged. The 105s, Tiagras etc. aren’t breaking as they’re hollow forged, but the pricier ones use bonding. I’m now wondering if I should have bought a 105 in replacement, but I’ve already ordered another Ultegra which should arrive tomorrow. I’ll just have to keep an eye out for any cracks forming, especially if a new creak/click happens.
I just removed the left crank
I just removed the left crank and have had a close look at both cranks – no sign of the bonding coming loose or any other cracks that I can see. Probably metal fatigue from where I accelerate as hard as possible away from lights etc.
I’ve also put a couple of those stickers onto my wheel rims – you can just about see one of them.
The black bits are the ends
The black bits are the ends of a black-reflective sticker that I’d put on both cranks – not part of the crank itself.
Something similar to these
Thanks.
Thanks.
I think I lead a charmed life – I could hardly have been closer to home and I’ve had worse injuries trying to remove a pedal. I only bothered putting a plaster on my knuckle when I went to bed as it was still weeping (for the lost crank).
Talking of pedals, I tried to remove the pedal from the broken crank without any luck, so I’m going to go for a pair of PD-ES600s to replace my old, stuck PD-A600s.