nothing goes to plan
Todays plans was simple, get up, have breakfast, put new chain ring on bike, go for a ride. Unfortunately real life never happens like that. Everything went ok up to the point of putting the chain ring on the bike, it would not fit. The plastic moulding on the SLX chain ring that aids the lifting of the chain was fouling the chain ring webbing on the outside Truvit chain ring. There was no other option, I would have to buy a new Shimano SLX or XT 44 tooth chain ring. Several phone calls later I have only been able to locate Shimano Derore (lower spec than a SLX or XT) or Race Face chain ring in the local stores. I end up buying the Race Face chain ring and leaving the shop several £ound lighter.
Back home I am left to my own devices as the family go off to do some shopping. With everything assembled and a quick run through the gears and everything seemed to be OK. A quick spin down the road and back revealed otherwise. The chain would not lift off the inner ring and on to the middle ring, it would either end up sucking it self between the chain stay and chain ring or just sit half way rattling across the teeth of the chain rings. No amount of adjusting the front dérailleur made any different, so I loaded the bike up and headed over to Cyclefix to see if they can resolve the issue so I can at least go for a ride.
Diagnoses came down to two possible faults, the small inner chain ring was worn and holding the chain or the middle chain ring was incompatible in some way. The only way to resolve this was to fit a new one of each (one at a time) to see if this resolved the problem. I could leave my bike and it would be ready late afternoon or I could do it myself in the shop using the spare bike stand, I took the later option. I soon had the crank out and in bits fitted the new small chain ring and then re assembled the crank. A quick test on the bike stand showed it was changing ok so I took the bike for a ride around the doctor surgery car park next store. The changing from small to middle chain rings was now working. So yet another chain ring was purchased, all in all an expensive morning and the bike is now sporting three new chain rings and a new chain.
Here is a picture of the old and new chain rings (sorry not a very good picture)
Here another reason I had to change the chain ring
After all that I never had time to go for a ride this afternoon so the bike is now ready for tomorrow mornings ride