Right Dura Ace 7900 Shifter not shifting up (more)...

Steven

2015-06-01

Have a bike shop send it back to Shimano for a new one. I've done this at least four separate times over my cycling career with Shimano STI shifters. They have always sent me a new one.

Steven R Holland

> On Jun 1, 2015, at 10:22 AM, Bre Rue via OBRA wrote:
>
> Ya, have me rebuild it for you ;)
>
> zombieshifters.com
>
> I started this business for just this reason. When stuff brakes I don't believe you should have to throw it away. I'm a mechanic not a parts changer. I hate the attitude of most all shops and service people of "Oh, it isn't working and you can't work on these, so you have to buy a new one." Well you don't have to!
>
>> On Mon, Jun 1, 2015 at 9:03 AM, Joe Tysoe via OBRA wrote:
>> My right shifter will shift up through the cassette but once it is shifted down will not shift back up.
>>
>> There appears to be a return mechanism that is not re-engaging.
>>
>> The issue started yesterday after riding over some really rough pavement; I just had the shifters installed so wonder if this a cable issue?
>>
>> I hit the shifter with TriFlow last night but this didn't seem to correct things, before I go to a shop is there anything else I should try?
>>
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Bre Rue

2015-06-01

Ya, have me rebuild it for you ;)

zombieshifters.com

I started this business for just this reason. When stuff brakes I don't
believe you should have to throw it away. I'm a mechanic not a parts
changer. I hate the attitude of most all shops and service people of "Oh,
it isn't working and you can't work on these, so you have to buy a new
one." Well you don't have to!

On Mon, Jun 1, 2015 at 9:03 AM, Joe Tysoe via OBRA
wrote:

> My right shifter will shift up through the cassette but once it is shifted
> down will not shift back up.
>
> There appears to be a return mechanism that is not re-engaging.
>
> The issue started yesterday after riding over some really rough pavement;
> I just had the shifters installed so wonder if this a cable issue?
>
> I hit the shifter with TriFlow last night but this didn't seem to correct
> things, before I go to a shop is there anything else I should try?
>
> _______________________________________________
> OBRA mailing list
> obra@list.obra.org
> http://list.obra.org/mailman/listinfo/obra
> Unsubscribe: obra-unsubscribe@list.obra.org
>
>


Joe Tysoe

2015-06-01

My right shifter will shift up through the cassette but once it is shifted
down will not shift back up.

There appears to be a return mechanism that is not re-engaging.

The issue started yesterday after riding over some really rough pavement; I
just had the shifters installed so wonder if this a cable issue?

I hit the shifter with TriFlow last night but this didn't seem to correct
things, before I go to a shop is there anything else I should try?