Search found 20 matches

by Roger_H
23 Jul 2019, 9:28am
Forum: Bikes & Bits – Technical section
Topic: 32 Sprocket with Campag Chorus?
Replies: 16
Views: 2602

Re: 32 Sprocket with Campag Chorus?

It isn't really a matter of needing the gear or wanting to use it. On my 3x10 I would not normally use the largest 2 sprockets with the big chainring but there have been a couple of occasions when I have thought I was in the middle ring & gone to change down a gear to find I couldn't because I ...
by Roger_H
22 Jul 2019, 7:51pm
Forum: Bikes & Bits – Technical section
Topic: 32 Sprocket with Campag Chorus?
Replies: 16
Views: 2602

Re: 32 Sprocket with Campag Chorus?

It isn't really a matter of needing the gear or wanting to use it. On my 3x10 I would not normally use the largest 2 sprockets with the big chainring but there have been a couple of occasions when I have thought I was in the middle ring & gone to change down a gear to find I couldn't because I ...
by Roger_H
22 Jul 2019, 10:27am
Forum: Bikes & Bits – Technical section
Topic: 32 Sprocket with Campag Chorus?
Replies: 16
Views: 2602

Re: 32 Sprocket with Campag Chorus?

With an 11spd block there are enough sprockets not to need bib-big whereas small-small is, for me, sometimes useful. But those discussions relate more to the ring and sprocket choices. And for me the Q is what will the rear mech actually take. It isn't really a matter of needing the gear or wanting...
by Roger_H
22 Jul 2019, 9:01am
Forum: Bikes & Bits – Technical section
Topic: 32 Sprocket with Campag Chorus?
Replies: 16
Views: 2602

Re: 32 Sprocket with Campag Chorus?

Agree with Mick F. In cases where I have gone beyond the capacity of a mech I have always set it so that the chain runs slack in little/little because that is a combination I truly would never use whereas big/big I do use in some circumstances. With an 11spd block there are enough sprockets not to ...
by Roger_H
21 Jul 2019, 6:48pm
Forum: Bikes & Bits – Technical section
Topic: 32 Sprocket with Campag Chorus?
Replies: 16
Views: 2602

Re: 32 Sprocket with Campag Chorus?

IMHO you need to set this up so that you can run big-big if necessary, and put up with the slack chain in small-small. The reason is that otherwise sooner or later you will accidentally select that gear and if there isn't enough chain length you will break something, possibly everything... I'm sure...
by Roger_H
21 Jul 2019, 6:45pm
Forum: Bikes & Bits – Technical section
Topic: 32 Sprocket with Campag Chorus?
Replies: 16
Views: 2602

Re: 32 Sprocket with Campag Chorus?

Works absolutely fine with a 30t, and I have no reason to doubt that it would work with 32t Main issue is total capacity. Cage length is what counts. From my experience, the parallelograms are the same, but the cages come in short and medium for Chorus, but medium and long for other mechs. I run a ...
by Roger_H
21 Jul 2019, 3:57pm
Forum: Bikes & Bits – Technical section
Topic: 32 Sprocket with Campag Chorus?
Replies: 16
Views: 2602

32 Sprocket with Campag Chorus?

I have a Campag Chorus rear mech which runs fine with a 29 sprocket. It is a 2010 mech which was just a standard length cage - ie short in today's terminology. Has anyone tried running similar with a 32 sprocket? (And, yes, I realise that cross chaining would not be on - but that's not something I d...
by Roger_H
21 Jul 2019, 3:41pm
Forum: Bikes & Bits – Technical section
Topic: Garmin 1:50k Full Country SD Card
Replies: 11
Views: 762

Re: Garmin 1:50k Full Country SD Card

I have an OS 1:50k card which I bought as part of a bundled Garmin 800. For me the price was OK because it was part of a bundle - but I doubt I'd buy one at the full price Garmin or OS want! I tend to use it so a 1km grid square fills around 70% of the screen. Less magnification gives imho too much ...
by Roger_H
5 Mar 2019, 7:25pm
Forum: Electric bikes
Topic: Ribble SLE
Replies: 35
Views: 3825

Re: Ribble SLE

KM2 wrote:A bion x wheel enables you to use your own bike and also uses regeneration braking. Reed switch on the brake lever.


Looks functionally good - but the aesthetics are not for me though.
by Roger_H
3 Mar 2019, 1:26pm
Forum: Electric bikes
Topic: Ribble SLE
Replies: 35
Views: 3825

Re: Ribble SLE

That's interesting. It seems, then, that there are various schemes implemented in different e-bike motor-controller software. I had a hunt about after the last post about the Focus Parlane2 and found a user-downloadable software thing from Fazua that reports details of various kinds on the motor's ...
by Roger_H
3 Mar 2019, 1:01pm
Forum: Electric bikes
Topic: Ribble SLE
Replies: 35
Views: 3825

Re: Ribble SLE

Mine doesn't it's all cadence based. On level one the max cadence is about 45 rpm, on two about 50 rpm and on 5 about 100rmp (just guessing at the numbers). The motor starts to reduce power as you approach that cadence. So pootling around on L1 simply means pedalling lazily, if you pedal faster the...
by Roger_H
3 Mar 2019, 11:21am
Forum: Electric bikes
Topic: Ribble SLE
Replies: 35
Views: 3825

Re: Ribble SLE

Of curse some things are a given - for example a 250Wh motor is just that.... Indeed, but remember that '250W' is the maximum continuous rated power, and it won't be available at all motor speeds ... Hands up! I said motor, I meant battery! Hope it makes a bit more sense if you reread with a mental...
by Roger_H
3 Mar 2019, 10:40am
Forum: Electric bikes
Topic: Ribble SLE
Replies: 35
Views: 3825

Re: Ribble SLE

Do you think all the e road bikes have a similar set up? Mine doesn't it's all cadence based. On level one the max cadence is about 45 rpm, on two about 50 rpm and on 5 about 100rmp (just guessing at the numbers). The motor starts to reduce power as you approach that cadence. So pootling around on ...
by Roger_H
2 Mar 2019, 7:16pm
Forum: Electric bikes
Topic: Ribble SLE
Replies: 35
Views: 3825

Re: Ribble SLE

Thanks for that kwackers (though I'm still getting my head round it!). I'm looking now at power to weight ratio. This seems to say that a fit cyclist putting out 250W and weighing say 65 kg has a PtoW ratio of about 3.5. Add the bike (say 12 kg) and it's about 3.2. Taking the TV example, an unfit r...
by Roger_H
2 Mar 2019, 7:03pm
Forum: Electric bikes
Topic: Ribble SLE
Replies: 35
Views: 3825

Re: Ribble SLE

The Ribble SLe, Orbea Gain, Pinarello Dyodo and the Wilier Cento 1 all use the same ebikemotion X35 system, the bike model weights differ, Ribble claiming the lightest build. In my experience riding an alloy framed Tiagra equipped Gain I am getting around 8km per 10% of charge, so allowing that I d...