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PostPosted: Sat Jul 23, 2011 12:21 pm 
Dirt Disciple
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Joined: Sun Aug 29, 2010 8:13 pm
Posts: 58
Current situation with a bodge I just bought on ebay (bike was originally 8 speed but for some reason changed to 7)

Bike has 7 speed shifters (gripshift max)

7 speed rear derailleur shimano tx30

I put an 8 speed shimano cassette on.

What would be the compatability problems (apart from only having 7 gears)

Would gear change work OK?


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PostPosted: Sat Jul 23, 2011 12:28 pm 
Old School Grand Master

Joined: Sun Jun 27, 2010 9:37 am
Posts: 3976
will work ok. may not work perfectly.


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PostPosted: Sat Jul 23, 2011 9:01 pm 
Gold Trader / rb Rider / Special
Gold Trader / rb Rider / Special
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Joined: Mon Aug 31, 2009 12:26 am
Posts: 16165
Location: Rurally close.
i could probably get it working perfectly, but you would lose one gear/cog from the cassette (i.e cant use it)

just adjust the limiter screws either at the top or bottom end
so you dont have 1st or 8th
:wink:


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PostPosted: Sat Jul 23, 2011 9:06 pm 
Dirt Disciple
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Joined: Sun Aug 29, 2010 8:13 pm
Posts: 58
Thanks. Thats what I've done, losing the highest gear. Someone butchered this bike bad, even the cogs in the derailleur were the wrong size. Fortunately it was cheap and just took time and a few spare parts (£12 worth) to correct. Will restore the triggers, rear derailleur and rear wheel to an 8 speed/disc when money allows


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PostPosted: Sun Jul 24, 2011 12:00 pm 
Gold Trader
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Joined: Wed May 20, 2009 1:29 pm
Posts: 10798
Location: Manchester, UK
the mech you have will be ok with 8 speed IMHO


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PostPosted: Sun Jul 24, 2011 1:16 pm 
Retro Guru
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Joined: Sat Jan 19, 2008 11:16 pm
Posts: 3711
Location: #2058
And there's me just stripped down a bike with all 8 speed equipment on it (LX shifters & mechs) :wink:


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