DA-7900 RD limit screw

Discuss light weight issues concerning road bikes & parts.
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PoorCyclist
Posts: 414
Joined: Wed Dec 07, 2011 1:26 am
Location: California's country side

by PoorCyclist

Just thought this was a little strange.

I opened a new in box RD-7900, bolted it on, no cable yet.

the High limit screw came about half way backed out from the factory. and it is sitting below the 4th cog. I had to back out a few more turns to get it to sit on the smallest cog. The hanger is not bent.

Is this quite normal? On SRAM I could only get to 2nd cog with the screw turned in. My guess is Shimano thinks if my shifter or cable broke, I can select probably any gear to ride home.

by Weenie


Bigger Gear
Posts: 284
Joined: Fri Mar 27, 2009 6:58 pm
Location: Wet coast, Canada

by Bigger Gear

More range means the rear derailleur can accomodate a variety of dropout thicknesses, but presumably SRAM has enough and Shimano's is overkill.

Maybe it is for juniors and cadets so they can block out the big gears easily?

thisisatest
Shop Owner
Posts: 1980
Joined: Sat Jun 13, 2009 4:02 am
Location: NoVA/DC

by thisisatest

typically, shimano derailleurs arrive out of the box with the limit screws set about two gears in- 3rd hardest and 3rd easiest. so yours is within reason.

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