On 9/9/2019 8:51 PM, AK wrote:
On Monday, September 9, 2019 at 7:45:43 PM UTC-5, Sir Ridesalot wrote:
On Monday, 9 September 2019 12:04:07 UTC-4, AK wrote:
On Monday, September 9, 2019 at 1:38:53 AM UTC-5, Chalo wrote:
6 speed freewheel and 8 speed shifter/derailleur are never compatible. 7 and 8 speed are compatible with Campagnolo parts, but for the love of God don't do that.

7 speed Shimano pattern freewheel or cassette and 8 speed Shimano pattern shifting are not compatible, but can be coerced to kinda-sorta work poorly together. There's a 0.2mm difference in gear intervals that stacks up to 1.2mm discrepancy across the extremes. It's likely to make noise.

Thanks for the info. So what do I need?

Andy

What you need to shift a SIX speed INDEX cassette or freewheel is a SIX speed INDEX shifter.

Was your original shifter (the one that was replaced) a SIX speed INDEX shifter? If it was a FRICTION shifter then the 8-speed shifter should work IF it has a FRICTION MODE on it besides index.

Cheers


I talked to the bike shop owner. He will replace the 6 speed freewheel with a new 7 speed at no additional charge.

So I guess I will have 3 more gears. :-)

Andy
7 speed


A good start.
If it has a Six chain now, get a Seven chain. If they used
an 8 chain, get a Seven chain. And test ride it before you
complete the conversation.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971