Quote:
Originally Posted by ringoism Well, the Altus/Acera rear derailleurs are definitely more rigid than the Tourney, so that's a good thing and may help alleviate the issue. Shifter itself may not be much different performance-wise, the integrated ones are considered pretty okay but I still prefer the non-integrated, and the conversion process is pretty painless, not much more time/hassle involved than changing a set of cables.
On that note might be worth a look at the cables, gear cable housing is supposed to be smaller diameter but sometimes mechanics put the bigger brake housing, and I suspect the extra slop in there can cause this issue. Basically if everything's not moving 100% freely and at the same time good and "tight" (devoid of slack/play), shifting gets compromised.
-Eric |
Got my bike looked at yesterday as I discovered in the morning while getting it ready for the ride (air and water bottle) that it had suddenly literally overnight (after the previous night's 70 km ride in pretty heavy rain) developed a strange rhythmic knocking sound from the rear hub area. I thought my chain degreasing and rains and washing shenanigans had gotten water/degreaser into the bearings and created mayhem. Mech heard the sound and immediately told me it was the bearings of the freewheel.
Took the opportunity to ask him to look at the iffy shifting as well. And also align and tune both pairs of brake calipers.
This is what he found ...
The freewheel balls (40 grade) were replaced and the body cleaned and new grease packed in.
The hub balls (40 grade) were replaced, and hub cleaned and new grease packed in This photos looks ghastly man (potty to peanut butter are the popular options) ... I had the rear hubs serviced barely a few months back.
The balls are special grade and twice the price of the normal Phadke Haud quality balls. Should last much longer, and give better rolling.
Both brake cables inners and outers, as well as the rear shift cable inner and outer was replaced with Alhonga stainless steel cables. The inners in the photo are completely knackered ... lesson learned. I last had them replaced 4 years ago. Alligator. These are twice the price and much better.
The dork disc was looking really dirty on a shiny bike so we cut it out (the rear wheel had already been fitted back).
Narendra hard at work on my bike. I've known him for over 5 years now and his work is top drawer.
The brakes were tuned. He feels I should replace these basic units (which are pretty worn and rusted now) with full alloy ones, because the adjusting screws on the sides of these go into a plastic body and beyond a point just keep turning and do not hold a setting for long. Also the spring of the right arm of the rear brake seems to be done, as it does not return properly, causing a bit of rub no matter how we adjust it. Shimano or Tektro would be around 800 bucks a pair.
But the braking now is unbelievable. Both the smoothness because of the brand new cables, and the stopping power, because of the tuning. I nearly went over the bars at Junna Bazaar chowk on my ride today morning when I dabbed them properly for the first time, squeezing as normal, not expecting the way they brought things to a halt!
The right shifter was opened and cleaned thoroughly and checked and the verdict was that it was in top shape. Which is a relief coz I'd like to keep this matched pair on my bike.
Finally the gears were indexed. He feels that the very slight delay in the upshifts from the biggest 34 cog down to 24 and then beyond, will become much shorter and quicker with the Altus rear derailleur. Other than that and the all=alloy brake calipers, of course the bike is due for a new crank, freewheel and chain.
Also discussed the possibility of getting a 36 hole free hub instead of the current threaded one, so that I can then move to better gearing options with 7 speed cassettes that unlike the freewheel have a top gear that's 12 (instead of 14) and both 32 and 34 lowest gear option combinations are possible. I know it all adds up but that (gearing) will be a big upgrade in terms of speed (right now with 14, its very common to spin out even on slight declines, leave alone a hill descent).
The verdict:
Today morning's ride was a revelation. The shifting is crisp and precise and never felt better in the 5 years I've owned Blue. Like the brakes, I shifted normally as usual initially and realized I was geting 3 clicks instead of one. Then modulated thumb input and got the click click slick shifting going thereafter! Brilliant. Got the double click max maybe 3 times in the entire 80 km ride, that too because i was sloppy (aggressive) in my shift.
Thanks a ton for your inputs Eric. In the end, as you got in bang on, it was the cables that made the biggest difference, everything else was hunky dory!
Cheers, Doc