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Derosa Merak Owners(5 posts)

Derosa Merak OwnersS-U-B
Jun 4, 2003 3:43 PM
I own a 2002 Merak and wanted to know if anyone else that owns this frame is having a flex problem in the bottom bracket area? I dont think I am but can't seem to get the bike to shift normally, likes to jump cogs whenver I stand up to climb or sprint. Local bike shop can't seem to get it figured out either. I'm 5'9" 170 so I'm not a huge guy but consider myself a really good sprinter. any help will be appriciated. probably just a rear derailer problem but getting frustrated. Thanks.
I havent experienced any of what you are describing. (nm)onespeed
Jun 5, 2003 6:43 AM
re: Derosa Merak Ownersuksrfr
Jun 5, 2003 9:36 AM
No problems like that. I bought mine used and was worried it might have problems, but 2000 miles in and it is working very well...
re: shiftingFredrico
Jun 5, 2003 2:05 PM
So the bike is okay, but something is flexing in the drive train enough to loosen the shifter cable and allow the chain to drop down into the next cog out.

Loose bottom brackets have caused that. The spindle flexes up and down, chainring flexes in and out. Remove the crank arms and make sure the BB cartridge is mounted solidly in the shell. Prime suspect.

Less likely but possible: the click stops on the rear derailleur shifter could be out just enough to let the chain slip down to the next smallest cog in an acceleration or climb. Adjust the barrel adjusters on the derailleur cable to align the chain on the cog it's supposed to be on.
re: shiftingS-U-B
Jun 5, 2003 4:25 PM
thanks for the replies. My LBS worked on it for a couple days and took it out for a ride and told me when I picked it up today they had it fixed. I'm taking it out for a ride tonight so I have my fingers crossed. Great frame isn't it? My toughest decision each day is do I ride the Merak, or the 381. Thanks again. I will let you know how it turns out.