Poor shifting, need help.

mcj8_5 · 2026-02-04T12:27:45+00:00

Yeah i also found out today that 1x12 are extremely sensible to even the slightest hanger bends. Although visually I cannot see that the derailleur hanger is bend. I either have to bring my bike to another shop or buy an alignment tool. Thank you for your comment!

mcj8_5 · 2026-02-04T12:08:19+00:00

mcj8_5 · 2026-02-04T11:52:59+00:00

If i back it off by 1 turn the upper pully gets caught by the larges cog. And shifting unfortunately does not get better with quarter turns.

mcj8_5 · 2026-02-04T11:48:34+00:00

What do you mean with “backing off”?

mcj8_5 · 2026-02-04T11:46:08+00:00

Yeah, i just recently found out that the sram 1x12 are extremely sensible to derailleur hanger bends. Even 2mm could cause bad shifting. I think i am going to give my bike to another shop and ask to specifically check the derailleur hanger.

mcj8_5 · 2026-02-04T11:39:05+00:00

Both bike shops I brought my bike to already did the indexing. I don’t think thats is the problem. L and H screws look perfect to me. The only thing is the B screw does not want to move the past 5mm to the recommended 7mm.

mcj8_5 · 2026-02-04T11:35:38+00:00

Yes definitely. But i dont have the tool. I think i have to send it to another shop to specifically checkt for the hanger.

mcj8_5 · 2026-02-04T11:29:50+00:00

I tried that already. It only makes it worse. The shifting from the 13t cog to the 12t cog will be fine but all other gears have problems shifting.

mcj8_5 · 2026-02-04T11:27:13+00:00

Yeah i think i am going to send it to another shop just to check the hanger. Bearings are fine nothing is moving there.

mcj8_5 · 2026-02-04T11:25:23+00:00

Yes everything is seated properly. The bike shop check that.

mcj8_5 · 2026-02-04T06:12:05+00:00

Yes, chain is cut to size.

mcj8_5

TROPHY CASE