Punkawallah
Veteran
Have you considered tube-guards inside the tyres? Won’t help with the wear, but might help with the punctures.
What Have You Fettled Today?
- Thread starter threebikesmcginty
- Start date
Page may contain affiliate links. Please see terms for details.
Have you considered tube-guards inside the tyres? Won’t help with the wear, but might help with the punctures.
Punkawallah
Veteran
Got out the spare inner tubes and gave them a few psi to see if they were all OK. Seem to have collected a few along the way, so about a dozen hanging in the garage.
sevenfourate
Devotee of OCD
- Location
- Lowestoft, Suffolk
After double-checking yesterdays crank install - it occurred to me the engagement of the sprocket bolts (Which thread directly into the Aluminium crank arms from the rear): wasn’t very much at all 😳
Bolt lengths available seen to jump from 10.3mm (Typical Double chainring length) to 14.8mm (Typical Treble chainring length). I of course worked out I needed about 12-13mm 🙄 in order to use all the thread available on the crank arms - and end up flush at the front. So I ordered some 14.8’s off Amazon last night.
As expected and when fitted and tightened - they projected out the front by 2-3mm 🤨
So rather than going straight in from the rear with the longer bolts - I first wound a short / stubby Female half / insert: right upto the underside of the longer bolt head. So the fit of the bolt into the sprocket was better; and the shoulder of the Female part acted as a small but tight spacing shim:
And upon tightening - the length is now absolutely perfect. Giving full bolt / thread engagement 👍
Bolt lengths available seen to jump from 10.3mm (Typical Double chainring length) to 14.8mm (Typical Treble chainring length). I of course worked out I needed about 12-13mm 🙄 in order to use all the thread available on the crank arms - and end up flush at the front. So I ordered some 14.8’s off Amazon last night.
As expected and when fitted and tightened - they projected out the front by 2-3mm 🤨
So rather than going straight in from the rear with the longer bolts - I first wound a short / stubby Female half / insert: right upto the underside of the longer bolt head. So the fit of the bolt into the sprocket was better; and the shoulder of the Female part acted as a small but tight spacing shim:
And upon tightening - the length is now absolutely perfect. Giving full bolt / thread engagement 👍
cyberknight
As long as I breathe, I attack.
- Location
- Land of confusion
i have tried them in the past but was not overly impressed with the ride feel , just checked the bike ready for tomorrow and the tube was flat
either the patch has leaked or there is another micro hole in it so i put a new tube in just to be on the safe side
Cycling Badger
Active Member
Fitted mudguards to bike for coming wet weather riding. Old mudguards, new V-stays. Currently, fitted and now at the point where I have to cut the stays. Putting it off as it’s a PITA. I usually mark with sharpie then remove and cut with Drimel. Open to suggestions on how to cut in situ?
Having bought some 60 TPI tyres as alternative to Marathon Plus for winter road rides I’ve set the front up tubeless. Hoping that dropping to 35mm and 60 TPI proves more reliable with tubeless setup. My experience of 45mm and 120 TPI performance tyres has really put me off tubeless. Time will tell if experiment will change my view.
Went to do rear and realised that that the rim wasn’t taped for tubeless. So that’s on hold until I get tape on Tuesday from LBS. (Now praying that the front was taped for tubeless - I had a quick check when I whipped out tube and inserted valve - but now paranoid I didn’t check properly. Will check in morning for loss of pressure and weeping nipples 😂
With weather this bad it was definitely a weekend better spent fettling or down pub.
Having bought some 60 TPI tyres as alternative to Marathon Plus for winter road rides I’ve set the front up tubeless. Hoping that dropping to 35mm and 60 TPI proves more reliable with tubeless setup. My experience of 45mm and 120 TPI performance tyres has really put me off tubeless. Time will tell if experiment will change my view.
Went to do rear and realised that that the rim wasn’t taped for tubeless. So that’s on hold until I get tape on Tuesday from LBS. (Now praying that the front was taped for tubeless - I had a quick check when I whipped out tube and inserted valve - but now paranoid I didn’t check properly. Will check in morning for loss of pressure and weeping nipples 😂
With weather this bad it was definitely a weekend better spent fettling or down pub.
