11-28 to 11-32 on short cage

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Bike : giant propel with shimano 105 5800 11-28 rear (short cage) and 34-50 front
According to manufacturer manuel rear derailleur can accommodate up 32 wich i did , with B screw tighten to the max i still have some rubbing. chain length with 28 seemed fine its also fine on the new 32 (a UTube showed the same bike with exact same gear worked well with 32 with B screw half way. Any advice ?
According to manufacturer manuel rear derailleur can accommodate up 32 wich i did , with B screw tighten to the max i still have some rubbing. chain length with 28 seemed fine its also fine on the new 32 (a UTube showed the same bike with exact same gear worked well with 32 with B screw half way. Any advice ?
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You'd be better off getting a wolf tooth mech hanger - they're only 20-odd quid
Specialising in Git Daaahns and Cafs. Norvern Munkey/Transplanted Laaandoner.
https://bike.shimano.com/en-EU/product/component/105-5800/RD-5800-SS.html
Have you tried tweaking the B-screw. Set up the 34/32 combination you refer to the turn the B-screw clockwise to move the top jockey wheel away from the 32 sprocket on the cassette until it runs smooth.
If you B-screw is already at it's limit and you are still getting rubbing the you can buy an extra long B-screw that will give you more leeway.
https://www.sigmasports.com/item/Wolf-Tooth-Components/25-mm-B-screw/I9ZD
If you B-screw is already at it's limit and you are still getting rubbing the you can buy an extra long B-screw that will give you more leeway.
https://www.sigmasports.com/item/Wolf-Tooth-Components/25-mm-B-screw/I9ZD
Thanks
I think this will solve it