Search found 2850 matches

by Samuel D
6 Oct 2019, 10:28am
Forum: Bikes & Bits – Technical section
Topic: Ribble R872 disK spider issues
Replies: 9
Views: 372

Re: Ribble R872 disK spider issues

Is this OK to ride ? No. You give scant information but presumably the photo shows the slack run of the chain with the right crank pointing backward and the chain in top gear. Just the same, the fractionally wider OLN distance of a disc brake hub should not make the chain hit the crank, suggesting ...
by Samuel D
6 Oct 2019, 9:56am
Forum: Bikes & Bits – Technical section
Topic: How should spokes sit in nipples to be right?
Replies: 15
Views: 504

Re: How should spokes sit in nipples to be right?

Would you describe in more detail what the failure was?
by Samuel D
5 Oct 2019, 8:37pm
Forum: Bikes & Bits – Technical section
Topic: How should spokes sit in nipples to be right?
Replies: 15
Views: 504

Re: How should spokes sit in nipples to be right?

Longer nipples give the spoke key something to grasp when the nipple seats are deeply embedded in the rim. I have not built enough wheels to know all the nipple designs out there. If some have a longer threaded section as you describe, I’d still worry about using them to solve Trikeyohreilly’s probl...
by Samuel D
5 Oct 2019, 7:59pm
Forum: Bikes & Bits – Technical section
Topic: How should spokes sit in nipples to be right?
Replies: 15
Views: 504

Re: How should spokes sit in nipples to be right?

If they are 12mm nipples not good. If they are 16mm nipples this would be fine. What difference would nipple length make? The longer nipples that I’ve used have not had a longer threaded section. And a longer nipple does nothing to stop the head end being loaded in tension rather than compression i...
by Samuel D
5 Oct 2019, 7:06pm
Forum: Bikes & Bits – Technical section
Topic: How should spokes sit in nipples to be right?
Replies: 15
Views: 504

Re: How should spokes sit in nipples to be right?

I like to have the spoke reach at least as far as the bottom of the slot in the nipple. So I’m with your LBS. With spokes your length, fewer threads are engaged and the nipple gets loaded in tension. That’s a sure way to have aluminium nipples fail from the fatigue of millions of cyclical loads, but...
by Samuel D
4 Oct 2019, 1:45pm
Forum: Bikes & Bits – Technical section
Topic: RD-M772; would you put your bike in for a service like this?
Replies: 16
Views: 930

Re: RD-M772; would you put your bike in for a service like this?

[…] it might also be something to do with exactly how the chain was wiped after it was last lubed, too; wiping in one direction may leave more chain lube to one end of the outer side plates, and it is this which makes crud most likely to stick? I wrap a paper towel or rag around the slack run of th...
by Samuel D
4 Oct 2019, 1:37pm
Forum: Bikes & Bits – Technical section
Topic: Spa Audax crash damage – fork?
Replies: 53
Views: 1649

Re: Spa Audax crash damage – fork?

Personally I particularly like the look of crowns which are inserted inside the fork blades, with the result that the join between crown and fork blades is invisible on the finished fork, e.g. like the first crown (LC04) in Ceeway's list and like the one below. However, the I understand that type o...
by Samuel D
4 Oct 2019, 1:25pm
Forum: Bikes & Bits – Technical section
Topic: Bike built from bits
Replies: 29
Views: 860

Re: Bike built from bits

horizon wrote:That means there isn't much space between mudguard and rack so perhaps a 700c rack would do better.

Perhaps something for ElCani to make sure he has in his box of unneeded parts for the next time!

Looks good, though. May it improve the life of your friend as I’m sure it will.
by Samuel D
4 Oct 2019, 12:55pm
Forum: Bikes & Bits – Technical section
Topic: RD-M772; would you put your bike in for a service like this?
Replies: 16
Views: 930

Re: RD-M772; would you put your bike in for a service like this?

Cleanliness of drivetrain varies from person to person as much as cleanliness of home toilet or clothing. I have riding companions who always show up with a spotless bicycle and gleaming drivetrain. They are not necessarily mechanically talented (I recall one of these compulsive cleaners arriving wi...
by Samuel D
4 Oct 2019, 12:06pm
Forum: Bikes & Bits – Technical section
Topic: Spa Audax crash damage – fork?
Replies: 53
Views: 1649

Re: Spa Audax crash damage – fork?

I had a minor collision with a car last week, i walked away with a couple of bruises and scraps, but the bike came off worse, an S shaped front wheel and a bulge on the downtube of the aluminium frame. The carbon fork between them looks fine, the chances are that it is, but it's not a chance I shal...
by Samuel D
3 Oct 2019, 9:10am
Forum: Bikes & Bits – Technical section
Topic: Spa Audax crash damage – fork?
Replies: 53
Views: 1649

Re: Spa Audax crash damage – fork?

I don’t intend to change the trail. One reason I like it the way it is may be that I use tyres of low rolling resistance. That gives less force to act on the lever of the trail. Handling wise, I like the Spa Audax a lot except for riding no-hands. That seems slightly harder on my bicycle than on pre...
by Samuel D
3 Oct 2019, 8:18am
Forum: Bikes & Bits – Technical section
Topic: Anyone using an 11-speed 11-42t (or similar) with a triple chainset?
Replies: 64
Views: 2474

Re: Anyone using an 11-speed 11-42t (or similar) with a triple chainset?

I can climb 40% gradients seated(albeit wheel lifting) and cycle over 50mph on the 48-11 gearing. … at 143 RPM and lower road speed than tucking and coasting in the same conditions. So why do you prefer pedalling at 143 RPM to coasting at higher speed? You’re not alone in this preference, but it in...
by Samuel D
3 Oct 2019, 7:58am
Forum: Bikes & Bits – Technical section
Topic: Anyone using an 11-speed 11-42t (or similar) with a triple chainset?
Replies: 64
Views: 2474

Re: Anyone using an 11-speed 11-42t (or similar) with a triple chainset?

The 11-speed Shimano CS-HG700 11-34t starts off with 11-13 sprockets so it has that awful gap between the 2 smallest sprockets! Shimano, why you do this when you've got the luxury of 11 sprockets to play with! I think this gap is in recognition that the 11T is intended for optional pedalling, not h...
by Samuel D
3 Oct 2019, 12:44am
Forum: Bikes & Bits – Technical section
Topic: Spa Audax crash damage – fork?
Replies: 53
Views: 1649

Re: Spa Audax crash damage – fork?

However, I have a general preference towards lower trail than most people seem to, but just because I prefer it doesn’t mean you will. Understood. I suppose it needs less leaning to steer no-hands with the shorter trail? Slowster: you’re right about the bosses on the Spa fork. More than I’d prefer....
by Samuel D
2 Oct 2019, 9:37pm
Forum: Bikes & Bits – Technical section
Topic: Park Tools chain wear tool - changes in newer version?
Replies: 14
Views: 731

Re: Park Tools chain wear tool - changes in newer version?

The new one looks like the old Shimano TL-CN40 & TL-CN41 type where roller wear is eliminated from the measurement because the measurement points are on the same side of the rollers. Exactly. Explained here. Nice to see Park Tool offering a tool of this sort. I don’t see why an 8-speed chain sh...