swapping gear wheels

pickarooney · 24-04-2017 8:37pm #1

I need to take the cogs off one back wheel (7speed) and transfer them to another wheel. The new wheel originally had 9 gears but they've been removed. What tools and pieces will I need and is it simple enough or is there a lot of messing about adjusting things?

07Lapierre · 24-04-2017 8:44pm

You'll probably need a chain whip and a lock nut removal tool.
How old is the wheel? What make/brand of wheel is it?
Can you post a photo of both wheels?

Wishbone Ash · 24-04-2017 9:22pm

Is it a freewheel or a cassette? Older wheels tend to have freewheels.

pickarooney · 24-04-2017 9:52pm

The 'old' one is about a year old, cassette. The only branding on it is 'velocity' which is the model of the bike (KS is the brand). The 'new' one is a few years older I'd say, Mavic brand, CXP33.

I'll grab a photo of each tomorrow.

pickarooney · 25-04-2017 8:19am

The new wheel is with the red tyre, the old one has no tyre
The cylindrical piece that holds the cogs (not sure which bit exactly is called the cassette) is approx 35mm on the new wheel. Hard to gauge the length of the one on the old wheel.

http://imgur.com/a/EP0E7

Effects · 25-04-2017 9:17am

Best €50 I've ever spent.

https://www.rosebikes.com/article/rose-all2gether-tool-box/aid:711694

cdaly_ · 25-04-2017 3:10pm

From your pics, it looks like the 7-speed is a freewheel and won't fit your new wheel. Post a close up of the 7-speed for confirmation.

pickarooney · 27-04-2017 3:03pm

What part of the 7-speed exactly do you need to see? The 4th picture (old wheel close) is about as detailed as I can show without removing the cogs.

I found this side-by-side image of the two types but the only real visible difference to my untrained eye is the part where the plastic transparent disc and largest cog are attached on mine.

I'll try the LBS on Saturday morning I reckon. Worst case is a new cassette for the wheel or does this have a knock-on effect on the derailleur?

07Lapierre · 27-04-2017 3:52pm

pickarooney wrote: »

What part of the 7-speed exactly do you need to see? The 4th picture (old wheel close) is about as detailed as I can show without removing the cogs.

I found this side-by-side image of the two types but the only real visible difference to my untrained eye is the part where the plastic transparent disc and largest cog are attached on mine.

I'll try the LBS on Saturday morning I reckon. Worst case is a new cassette for the wheel or does this have a knock-on effect on the derailleur?

One is a treaded hub (on the left), the one on the right is a freewheel/Hub, where the cogs (cassette) slide onto the freehub and are locked into position with a lockring.

In short, there not interchangeable

cdaly_ · 27-04-2017 4:07pm

pickarooney wrote: »

I'll try the LBS on Saturday morning I reckon. Worst case is a new cassette for the wheel or does this have a knock-on effect on the derailleur?

You likely won't get a 7-speed cassette for the new wheel so you're looking at a 9-speed cassette, possibly a derailleur and new 9-speed shifter. What sort of shifter have you?

07Lapierre · 27-04-2017 4:19pm

cdaly_ wrote: »

You likely won't get a 7-speed cassette for the new wheel so you're looking at a 9-speed cassette, possibly a derailleur and new 9-speed shifter. What sort of shifter have you?

I think you can...

sorry...not for the new wheel..

http://www.halfords.ie/cycling/bike-parts/gears-cables-drivetrain/halfords-7-speed-freewheel-14-28t