Search found 48 matches

by Dwnglasgow
10 Aug 2020, 5:43pm
Forum: Bikes & Bits – Technical section
Topic: Identifying mystery part
Replies: 5
Views: 397

Re: Identifying mystery part

bgnukem wrote:Looks like it's the spacer that sits behind the cassette i.e. not between sprockets, but behind the largest sprocket when the cassette is mounted on the freehub body. 9/10 means intended for a 9 or 10-speed cassette / freehub body.


So, would that have come from the Sora cassette rather than the 105? The former is 9 speed and the latter is 11 - although I have a feeling it came off the 105.
by Dwnglasgow
10 Aug 2020, 5:29pm
Forum: Bikes & Bits – Technical section
Topic: Identifying mystery part
Replies: 5
Views: 397

Re: Identifying mystery part

Thanks! Can only assume it's from the very bottom of the 105 cassette, although not sure why it is marked 9/10
by Dwnglasgow
10 Aug 2020, 5:27pm
Forum: Bikes & Bits – Technical section
Topic: Rim sizes and tyre widths
Replies: 3
Views: 311

Re: Rim sizes and tyre widths

Thanks both - the Tribans are supposedly tubeless ready, but not sure about the Mavic Aksiums. As it happens I have frame clearance for 35mm tyres which I would like to run on the Aksium wheels. I'd be running these at about 50/60 psi so perhaps it isn't much of a risk.
by Dwnglasgow
10 Aug 2020, 4:57pm
Forum: Bikes & Bits – Technical section
Topic: Identifying mystery part
Replies: 5
Views: 397

Identifying mystery part

I've been making some changes to my bikes, including removing the cassettes from one wheelset onto another. Today I found a part on the shed floor, and am unsure where it is from. Cassettes are 105 in one case and Sora in the other. Can anyone identify this part from the photo.
by Dwnglasgow
10 Aug 2020, 4:53pm
Forum: Bikes & Bits – Technical section
Topic: Rim sizes and tyre widths
Replies: 3
Views: 311

Rim sizes and tyre widths

I have 3 disc brake wheelsets, all of which are marked as 17c. Two of them (Triban and Mavic Aksium) say that they will accept tyres from 25mm to 32mm, but the other (Fulcrum Racing 6) notes that tyres from 23mm to 50mm will fit - which is a huge range compared to the other two.

I'm a bit puzzled by the difference given that all 3 are the same width. Any idea why that would be the case?

Thanks
by Dwnglasgow
26 Jun 2020, 3:43pm
Forum: Bikes & Bits – Technical section
Topic: New wheels or new tyres
Replies: 11
Views: 864

Re: New wheels or new tyres

Pebble wrote:Marathn plus are a nightmare when new, there is no half measures to get them on, when you get 3 or 4,000 on them they go on a bit easier. I carry a long ength of twine i the emergency pack in case I ever need to fix a puncture at the side of the road (which is only been once in the last 10k running m.plus

Image

I've tried cable ties, but not as much coverage as your twine technique
I've just ordered a tyre seating tool from Wiggle, so perhaps that will do the trick
by Dwnglasgow
26 Jun 2020, 3:39pm
Forum: Bikes & Bits – Technical section
Topic: New wheels or new tyres
Replies: 11
Views: 864

Re: New wheels or new tyres

iandriver wrote:Just as a test, can you remove the rim tape and see if the extra depth allows the tyre to go on.

I tried it without the rim tape, which is very thick,) but I'm afraid that didn't help.
by Dwnglasgow
26 Jun 2020, 6:49am
Forum: Bikes & Bits – Technical section
Topic: New wheels or new tyres
Replies: 11
Views: 864

Re: New wheels or new tyres

irc wrote:Some combinations just don't work. Especially with disc specific rims. As the rim is shallower there is less scope for working the tyre bead into the well of the rim to gain a bit of slack. I had a disc MTB supplied with. Nokian tyres. I ended up tossing them in the bin because even in a shed with plenty tools getting them on the rim was touch and go and took loads of force despite techniques that work with other tyre)rim combinations. Other tyres were a tight fit but went on with levers. I just couldn't face a puncture with the Nokians miles from the road.

As well as disc rims being shallow rims I suspect some rims are a few mn bigger or smaller than average. Likewise tyres will vary a few mm. If you get a "big" rim and a "small" tyre you will struggle.

I've no idea what variation there is between different batches of rims. Have you measured both sets of rims to see if they are the same? Ir tried fitting the 35mm tyres on the second set of rims?

My limited experience with disc specific rims was so off putting that if I was ever getting wheels hand built for a disc touring bike I would use normal rims with a brake track and deeper well. Obviously in some areas of cycling that is an unwelcome weight penalty.


The deeper but narrower well does seem to be a problem as the tyres just can't be forced into it. I even tried it without an inner tube, but that didn't work either. The Schwalbe tyres are recommended by Fulcrum, so they can't help with further advice.

I need 28/30 tyres on this wheel since it has to fit into a bike with mudguards. Identifying a tyre which will go into this rim is a real problem - I'm building a stock of unusable tyres at present, and I can see my wife beginning to look askance at my 'inexpensive' hobby.
by Dwnglasgow
26 Jun 2020, 6:14am
Forum: Bikes & Bits – Technical section
Topic: New wheels or new tyres
Replies: 11
Views: 864

Re: New wheels or new tyres

Jdsk wrote:There's a method that uses straps as you work around the circumference. And another where you drop the bit that's already fitted into the well.

Jonathan

Hi, yes I tried both those things but nothing doing
by Dwnglasgow
26 Jun 2020, 6:12am
Forum: Bikes & Bits – Technical section
Topic: New wheels or new tyres
Replies: 11
Views: 864

Re: New wheels or new tyres

Samuel D wrote:
Dwnglasgow wrote:Absolutely impossible to get on the rim.

Did you get the first bead on the rim at least?


I did, although with real difficulty
by Dwnglasgow
25 Jun 2020, 8:10pm
Forum: Bikes & Bits – Technical section
Topic: New wheels or new tyres
Replies: 11
Views: 864

New wheels or new tyres

I'm looking for some advice on wheels and/or tyres. I have recently acquired two fulcrum racing 6 db wheelsets. On one set I added 35 mm Schwalbe G One Speed tyres. They went on no problem; I barely had to use tyre levers. Similarly, I added a set of 38mm to my wife's pinnacle hybrid (factory wheels) and they went on without using the levers at all.

The problem came when I tried to add 30mm G Ones to my second set of Fulcrum wheels. Absolutely impossible to get on the rim. Tried Schwalbe Marathon - even worse. Finally, the stock tyres that came with my bike - no chance.

So, I now either need tyres that will fit the Fulcrum wheels or inexpensive rims that are not tubeless ready. Any suggestions?
by Dwnglasgow
25 Jun 2020, 7:52pm
Forum: Bikes & Bits – Technical section
Topic: Shimano 105 right gear shifter - repairable?
Replies: 5
Views: 226

Re: Shimano 105 right gear shifter - repairable?

I have a similar problem, although in my case the part was defective. I'm told that it has to be replaced rather than repaired - but that no stock will be available for at least a month
by Dwnglasgow
10 Mar 2020, 7:50am
Forum: Touring & Expedition
Topic: Lockerbie to Glasgow
Replies: 10
Views: 999

Re: Lockerbie to Glasgow

Thanks all for the responses. it sounds perfectly viable to do the trip from what you've said. In some ways it sounds like many of the roads within easy reach of Glasgow - less than smooth surfaces seem to be the price of not using main roads. It makes the rare occasions when I find quiet roads with flat, smooth tarmac even more enjoyable!
by Dwnglasgow
9 Mar 2020, 7:31pm
Forum: Touring & Expedition
Topic: Lockerbie to Glasgow
Replies: 10
Views: 999

Re: Lockerbie to Glasgow

I'm not sure I have posted this in the right forum, since a 1 day trip doesn't really count as touring!
by Dwnglasgow
9 Mar 2020, 7:29pm
Forum: Touring & Expedition
Topic: Lockerbie to Glasgow
Replies: 10
Views: 999

Lockerbie to Glasgow

So, once the slightly better weather starts I'm thinking about taking a train to Lockerbie and then cycling home to Glasgow. It's around 76 miles, but if it becomes too much of a slog I can cut out the last 21 miles by getting a train at Larkhall.

I know the Larkhall to Glasgow section well, but have never cycled on the southern section. It looks as if the old A74 road still exists (at least on sections), running quite close to the motorway. Has anyone cycled this in recent years, and is it a decent road?

Thanks