Bicycle Mechanics - 2600km....maintenance?
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05-22-11, 09:58 PM
I've put about 2600km on my Specialized Roubaix now and other than cleaning the chain I've done nothing but ride.
Is this a time I should be thinking about wheel bearings and the RD pulleys? Chain? It seems to measure out ok but it was noisy. I gave it a solvent bath and lubed it so it runs quiet without all the sand and grime.
05-23-11, 01:00 AM
Inspect your tires too it may need some, the rear might be not as round and has "flattened" out where the rubber meets the road. 2600km isn't a ton bit its probably time for inspections. I wouldn't think much about the pulleys other than wiping off excess black muck but I usually put 3200km until I start thinking about wheel bearing overhauls and bottom bracket overhauls. Inspect all 4 cables too for fraying or broken little wires, it sure is a pain if you loose a cable head in a shifter. If the chain isn't stretching too far I would leave it as well unless you plan on a new cassette. If you put a new chain on a used cassette it wont mesh right and pop and ping sometimes when putting a lot of force down. Just keep up with the chain lube and you should be fine.
05-23-11, 10:13 AM
You were right about the tires. The rear was worn flat. I swapped them back to front but I think new tires wouldn't be a bad idea.
I think the bearings are sealed in these wheels, but I'm going to give them an inspection at 3000km which will be in the next two weeks.
I listen for rattles developing as I ride. Every once in a while I'll check that stuff isn't getting tight. If it's not too tight or loose, it's almost certainly good to go. Consequently, things like hubs and BBs I almost never touch.
Aside from lubing the chain, pretty much all I have to do now and then is clean and lube my rear shift cable to keep the indexing spot-on.
Measure the chain every 500 km or so, starting now. When the 24-link distance (pin center to pin center) exceeds 12 1/16", replace.
And you might get by with one new tire. Put it on the front, and wear the old front tire out on the rear (per Sheldon).
05-23-11, 01:01 PM
I don't recomend putting the rear tire on the front. The front is the one that will take you down if there is a problem. When the threads show through or the number of flats increase put a new one on the front and the old front on the back.
I overhaul my hubs every 2500 to 3000 miles (4000 to 4800km.). All of my rear wheels have shimano hubs with cup and cone bearings. Three out of four are lod Suntour with radial bearings. I will pop the seals and relube them every 5k miles. The pedals are Shimano and I relube them at about the 5k miles interval.
I remove and clean the chain every 650 to 700 miles and lube it with 1 part chainsaw bar oil to 4 parts mineral spirits.
Cables and housing are replaced as they wear out.
05-23-11, 02:05 PM
If the chain isn't stretching too far I would leave it as well unless you plan on a new cassette. If you put a new chain on a used cassette it wont mesh right and pop and ping sometimes when putting a lot of force down. Just keep up with the chain lube and you should be fine.
When you pro-actively replace chains as they stretch .5% new ones work fine with old cassettes. As long as you avoid aluminum/titanium large cogs road cassettes seem to last through 3 chains.
Some people like to rotate 3-4 chains so they're never putting a new chain on a used cassette. A few of those run everything past the point where they'd have skip although that risks accelerated ring wear.
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