Originally Posted by [B
Bobarella[/B];14580387] Hi All, Could anyone advise me on what may be the issues, the bike shops have done the usual tightening of parts and making sure they are greased but nothing fixes them and they aren't foldie specialists. Any tips would be very much appreciated. Thanks!
I ride a Curve SL (also 2008) and I've had most of the issues that you describe. I agree with what Thorsten advises (well, except I don't know Fudge Cycles) and can only add that I do a fairly constant check about the bike in the areas you've noted. I commute on my Curve 16 mi. a day (plus 22 on the Metro train), so it gets miles plus folds fairly often. I've noticed (as have you, probably) that if anything
is not right, you feel it in the ride right away. Here are my most oft checked bits:
1. Steering tube @ headset hinge; this adjustment is critical, i.e. if you under-tighten the nut (8mm open end works best) the steering tube will be (and will feel!) loose. If you over-tighten it will either (a.) not close or (b.) start to fracture the little white plastic cube on the adjuster. I carry an 8mm wrench (spanner) in my pack at all times (and a spare white plastic cube thing), just in case.
2. Quick Release lever's rotating surfaces everywhere, i.e. the handlebar to stem, the steering tube central QR, the seat post QR and the main frame hinge. I use Park grease, but whatever brand light grease works fine. That said (and done) I still have to tighten the nuts on the QR's occasionally. Again, the bike will feel "loose" when you ride if any of these QR's are even a tad loose.
3. Front hub adjustment; You'll have to check yours to be sure, but on mine there is nothing to keep the adjustment on the front hub bearings, hence they will occasionally work a bit loose. I just finger-tighten them (there are no nuts) and clamp the wheel back in with the front hub QR. Seems to stay in adjustment for a couple of months before I have to re-tighten.
4. Not mechanical, but if the tires (tyres) get a bit low on air, you will feel it (again) as a loose bit somewhere! I check my tire (tyre) pressure every three or four days and top them off to 85 psi. (Schwalbe Marathon Racers).
Okay, reading over this it sounds like a lot but most of it only takes a few seconds, a few minutes at the worst and is only an "issue" if ignored and left un-done. I understand from your post that you are not a mechanic, but none of this takes any mechanical knowledge or prowess, really. Any questions?
Oh, mine is different from yours in that it's an 8 speed (Shimano Nexus) IGH (Internal Gear Hub) but for the bits discussed above, that difference doesn't matter.
Rick / OCRR