Sora Double/Tripe & Q Factor.

Quoted message said:

Looking to reduce Q factor on my current triple Sora bike by approx
10mm. Am I right in thinking that a Sora double with correct BB length
would acheive this?

Also thinking that another way would be to get a BB approx 10mm
shorter (107mm) and dispense with inner ring on triple to give me
desired reduction in Q factor.

You can get 6 mm by putting in 3 mm pedal washers. I did this for
years and thosands of miles of riding w/o problem. If you use a MTB
pedal/shoe, with the cleat all the way toward the instep, you will
also get a few mm on each side.

Quoted message said:

Looking to reduce Q factor on my current triple Sora bike by approx
10mm. Am I right in thinking that a Sora double with correct BB length
would acheive this?

Also thinking that another way would be to get a BB approx 10mm
shorter (107mm) and dispense with inner ring on triple to give me
desired reduction in Q factor.

Any suggestions please

(Am restricted to keeping 8 speed set up)

Tom

Assume that the Sora crank is a square taper..Look at the small ring
attach stubs to frame clearance..that's how much you can reduce
spindle length. I'm guessing not much. A double with appropriate BB
will do this, for gearing maybe a compact crank?

Qui si parla Campagnolo said:

Quoted message said:

Looking to reduce Q factor on my current triple Sora bike by approx
10mm. Am I right in thinking that a Sora double with correct BB length
would acheive this?

Quoted message said:

Also thinking that another way would be to get a BB approx 10mm
shorter (107mm) and dispense with inner ring on triple to give me
desired reduction in Q factor.

Quoted message said:

Any suggestions please

Quoted message said:

(Am restricted to keeping 8 speed set up)

Quoted message said:

Tom

Assume that the Sora crank is a square taper..Look at the small ring
attach stubs to frame clearance..that's how much you can reduce
spindle length. I'm guessing not much. A double with appropriate BB
will do this, for gearing maybe a compact crank?

Yep, Square Taper crank . Can just get 5mm (therefore total 10) with
stub to frame clearance so this is an option however gears a bit high.
I like the compact option but would my 8 speed chain and cass rule
this out as all compacts seem to be narrow 9/10 speed rings...?

Quoted message said:

Qui si parla Campagnolo said:

On Feb 2, 3:22 am, [email hidden] wrote:

Quoted message said:

Quoted message said:

Looking to reduce Q factor on my current triple Sora bike by approx
10mm. Am I right in thinking that a Sora double with correct BB length
would acheive this?

Quoted message said:

Quoted message said:

Also thinking that another way would be to get a BB approx 10mm
shorter (107mm) and dispense with inner ring on triple to give me
desired reduction in Q factor.

Quoted message said:

Quoted message said:

Any suggestions please

Quoted message said:

Quoted message said:

(Am restricted to keeping 8 speed set up)

Quoted message said:

Quoted message said:

Tom

Quoted message said:

Assume that the Sora crank is a square taper..Look at the small ring
attach stubs to frame clearance..that's how much you can reduce
spindle length. I'm guessing not much. A double with appropriate BB
will do this, for gearing maybe a compact crank?

Yep, Square Taper crank . Can just get 5mm (therefore total 10) with
stub to frame clearance so this is an option however gears a bit high.
I like the compact option but would my 8 speed chain and cass rule
this out as all compacts seem to be narrow 9/10 speed rings...?

No problem at all using a 8s chain on an otherwise '10s' crank..non-
issue, we install compact of various manufacturers, FSA, Campag,
shimano, Ritchey on 8s 'systems'.

Paul Kopit said:

Quoted message said:

Looking to reduce Q factor on my current triple Sora bike by >
Also thinking that another way would be to get a BB approx 10mm
shorter (107mm) and dispense with inner ring on triple to give me
desired reduction in Q factor.

You can get 6 mm by putting in 3 mm pedal washers. I did this for
years and thosands of miles of riding w/o problem. If you use a MTB
pedal/shoe, with the cleat all the way toward the instep, you will
also get a few mm on each side.

I thought he wanted to reduce the Q factor, not increase it.

Qui si parla Campagnolo said:

Quoted message said:

On 2 Feb, 13:28, "Qui si parla Campagnolo" <[email hidden]> wrote:

Quoted message said:

Quoted message said:

On Feb 2, 3:22 am, [email hidden] wrote:

Quoted message said:

Quoted message said:

> Looking to reduce Q factor on my current triple Sora bike by approx
> 10mm. Am I right in thinking that a Sora double with correct BB length
> would acheive this?

Quoted message said:

Quoted message said:

> Also thinking that another way would be to get a BB approx 10mm
> shorter (107mm) and dispense with inner ring on triple to give me
> desired reduction in Q factor.

Quoted message said:

Quoted message said:

> Any suggestions please

Quoted message said:

Quoted message said:

> (Am restricted to keeping 8 speed set up)

Quoted message said:

Quoted message said:

> Tom

Quoted message said:

Quoted message said:

Assume that the Sora crank is a square taper..Look at the small ring
attach stubs to frame clearance..that's how much you can reduce
spindle length. I'm guessing not much. A double with appropriate BB
will do this, for gearing maybe a compact crank?

Quoted message said:

Yep, Square Taper crank . Can just get 5mm (therefore total 10) with
stub to frame clearance so this is an option however gears a bit high.
I like the compact option but would my 8 speed chain and cass rule
this out as all compacts seem to be narrow 9/10 speed rings...?

No problem at all using a 8s chain on an otherwise '10s' crank..non-
issue, we install compact of various manufacturers, FSA, Campag,
shimano, Ritchey on 8s 'systems'.

Thanks - this is good news. Ive seen some cheap campag compacts so set
up would be campag chainset and BB with Shimano 8 speed chain and
casette.........without probs....