Search found 424 matches

by Brian73
22 Dec 2023, 4:28pm
Forum: Bikes & Bits – Technical section
Topic: 1/4 inch bearings in Quando Disc Hub - Worn Cones
Replies: 7
Views: 458

Re: 1/4 inch bearings in Quando Disc Hub - Worn Cones

I refaced the hubs using a drill mounted in a vice and 400 grit wet / dry. Got most of the pitting out.

Seems to have done the job, I used an old set of ball bearings also as they seem to sit a bit higher up on the cone away from the pitting.

Seems to be running smooth enough for a commuter bike. They're going to get wet and gritty through winter anyway.

I have had a BMX with 1/4 inch balls in the front, but not a hybrid / road bike.

They are definitely built for 1/4 inch bearing cones, I tried a spare set of 3/16 bearing cones on the axle and there was a huge gap on the hub flange.

Given that these Decathlon wheels are absolute junk I'll source a better quality set in the summer.
by Brian73
22 Dec 2023, 12:50am
Forum: Bikes & Bits – Technical section
Topic: 1/4 inch bearings in Quando Disc Hub - Worn Cones
Replies: 7
Views: 458

1/4 inch bearings in Quando Disc Hub - Worn Cones

I've bought a used Decathlon B'Twin Riverside 500 for my commuter.

The front hub felt really notchy so I stripped it for a re-grease.

The axle is a standard 9mm x 108mm but the ball bearings and cones are for 9x 1/4 inch in each side.

The cones are really pitted, but I cannot find a replacement with 1/4 inch bearing cones.

Rear cones are for a 10mm axle, so are too big to fit the 9mm axle

Does anybody know the model number of any front QR axles that have the correct cones to fit the 1/4 inch ball bearings?

TIA
by Brian73
24 Oct 2020, 11:42am
Forum: Bikes & Bits – Technical section
Topic: Shimano LP-20 Square BB Drive Side Plastic Cup
Replies: 1
Views: 205

Shimano LP-20 Square BB Drive Side Plastic Cup

I've just stripped a 1994 MTB with an FC-MC30 STX chainset and discovered an LP20 BB with the plastic cup on the drive side.

Never seen one like this before, the plastic cups are generally found on the non-drive side, unless it's an FAG with them on both sides.

Can I replace it with a standard flanged metal drive side BB or does the FC-MC30 STX chainset require this LP20 type?

https://si.shimano.com/pdfs/ev/EV-BB-LP ... -1243B.pdf

It appears to be an odd convention, any idea why Shimano did this?
by Brian73
30 Jun 2020, 9:15pm
Forum: Does anyone know … ?
Topic: 26" MTB rear wheel 7 speed - any good deals?
Replies: 7
Views: 597

Re: 26" MTB rear wheel 7 speed - any good deals?

This ebay seller has pretty much every type of 26 inch wheel

They have a selection of 130mm and 135mm OLD

Screw fit and freehub.

They also have a good selection of rim widths for older bikes with wider cantilever posts.

https://www.ebay.co.uk/sch/Wheels-Wheelsets/177830/m.html?_nkw=&_armrs=1&_ipg=&_from=&_ssn=bankrupt_bike_parts
by Brian73
29 Jun 2020, 1:16pm
Forum: Does anyone know … ?
Topic: Returning to cycling - new or used?
Replies: 9
Views: 684

Re: Returning to cycling - new or used?

Decathlon are a French sports retailer with several superstores in the UK.

I have had a few of their B'Twin bikes. No major problems, except for the cones on the wheel hubs that tend to be done up far too tight.

Triban is the brand name for their race bikes. If you're going to use it on anything other than tarmac I'd look at their Rockrider range or Riverside range.

Prices are keen at the moment. I just sold 2 bog standard aluminium race bikes for 2.5x what I paid for them. I bought them second hand off ebay a couple of years ago when nobody wanted aluminium race bikes.
by Brian73
5 May 2019, 6:20pm
Forum: Bikes & Bits – Technical section
Topic: another wheelset bites the dust....
Replies: 9
Views: 706

Re: another wheelset bites the dust....

There's a type of roadie that buys a new bike then immediately sells the wheels.

Wheels are generally the part where manufacturers save money on a build, along with chainset and brakes.

You can pick up a brand new set of wheels for about half the price of a new set this way.

I have replaced worn cones with the Weldtite ones without issue, I have a set of sealed cartridge hub Giant branded wheels hanging on the wall unused, all my 'in use' wheels have Shimano hubs, including my 28 year old mountain bike, still on its original set of Alesa rims with Exage hubs.
by Brian73
5 May 2019, 10:26am
Forum: Bikes & Bits – Technical section
Topic: Compact Double with MTB rear mech issues?
Replies: 6
Views: 562

Re: Compact Double with MTB rear mech issues?

All done now, seems to work pretty well on the bike stand.

Fitted with 26c tyres, still plenty of clearance for mudguards, plus it has rack mounts. All came in at under £100 (including the original bike from ebay).

I can always swap the 34 inner ring for a 36 if needed.

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by Brian73
2 May 2019, 6:36pm
Forum: Bikes & Bits – Technical section
Topic: Compact Double with MTB rear mech issues?
Replies: 6
Views: 562

Compact Double with MTB rear mech issues?

I'm building a cheap bike that's easier on the hills.

Standard alloy road frame.

Any potential pitfalls apart from the old double / triple debate?

Compact double (34/50)

2300 STI shifters 2x8

2300 Front mech

Acera M360 8 speed rear mech

HG41 8 Speed 11-30 cassette

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by Brian73
1 Nov 2018, 10:57pm
Forum: Bikes & Bits – Technical section
Topic: Tourer - 26" or 700c wheel?
Replies: 63
Views: 3512

Re: Tourer - 26" or 700c wheel?

I ride these:

I prefer the 26 inch as it is more nimble around town, but the 700c does roll faster. Before you splash out buy something old and second had to try them out.

Raleigh Pioneer 4130 Cr Mo frame 700x35c with a compact Acera chainset 22 32 42 with a 12-28 7 speed cassette.

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Dawes Reynolds 500 Cr Mo MTB 26x1.95 with a 28 38 48 Chainet and 12-32 7 speed cassette.

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by Brian73
1 Nov 2018, 6:08pm
Forum: Bikes & Bits – Technical section
Topic: Tektro RX-3 Mini V and Shimano EF60 Levers
Replies: 2
Views: 362

Tektro RX-3 Mini V and Shimano EF60 Levers

Hi People.

I recently acquired a Pinnacle Borealis (Evans Cycles own brand) hybrid.

It is fitted with Tektro RX-3 mini V brakes.

The shift lever, brake lever combos are Shimano ST EF60. These are the selectable type lever with a small red plastic insert to adjust the pull between canti or V. They are currently set to V, but I assume this is wrong because Mini V brakes are supposed to have the same MA as cantis.

There is no modulation on the brakes, so I'm surprised the bike left the shop like this. It would be tricky to ride, especially in the wet.
by Brian73
20 Aug 2017, 6:41pm
Forum: Bikes & Bits – Technical section
Topic: Fitting V brakes to early 1990s MTB
Replies: 2
Views: 400

Fitting V brakes to early 1990s MTB

I picked up a really cheap Dawes MTB today (Reynolds 500 lugged frame)

It came with an odd set of shifters One EZ Fire 3x STi unit with a V brake lever, the other was the original 200GS rapid fire with a separate canti brake lever.

Do I go for V brakes and buy the 7 speed EZ fire shifter/lever or stick with the cantis and but a separate lever/shifter set?

Are the canti posts different widths on modern stuff? I remember reading somewhere that they might be.

I've seen some Altus shifter/brake levers from 1995 but I am not sure if these are V or canti levers.
by Brian73
15 Aug 2017, 6:42pm
Forum: On the road
Topic: Cyclist on trial for manslaughter- sentenced
Replies: 1064
Views: 55622

Re: Cyclist on trial for manslaughter

Some interesting case law:

Longbottom (1849) pre-SCJA 1873

[Gross negligence manslaughter - contributory negligence not a bar to conviction]
DD negligently drove a gig along a public thoroughfare in the evening at a rapid pace, and down a shaded hill killing a pedestrian.

Held: Even though deceased was himself guilty of great negligence in persisting in walking in the middle of such a road, though he was quite deaf, and thereby contributed to his own death, D was liable.

Guilty of manslaughter

Recklessness

Seymour (1983)

The appropriate direction to the jury in a manslaughter case where death was caused by reckless driving was Lord Diplock's dicta in Lawrence.
Lord Roskill (obiter) :

“[there is]…a need to prescribe a single and simple meaning of the adjective "reckless" and the adverb "recklessly throughout criminal law unless Parliament has otherwise ordained in particular case. That simple and single meaning should be the ordinary meaning of those words as stated in this House in R v Caldwell and in R v Lawrence.”

Lawrence(1982)

It is for the jury to decide whether the risk created by the manner in which the vehicle was being driven was both obvious and serious and, in deciding this, they may apply the standard of the ordinary prudent motorist as represented by themselves.

Under the Road Traffic Act 1988 (as amended by the Road Traffic Act 1991) it is an offence to ride recklessly on a road or in a dangerous, careless or inconsiderate manner. These offences are covered by sections 28 – 30 of the Act.

Applying the test in Lawrence: Did the manner in which the bicycle was being ridden fall below that of an ordinary prudent cyclist?
by Brian73
15 Aug 2017, 5:14pm
Forum: On the road
Topic: Cyclist on trial for manslaughter- sentenced
Replies: 1064
Views: 55622

Re: Cyclist on trial for manslaughter

I'm always on the lookout for phone zombies now when I'm cycling or driving around Sheffield.

My singlespeed (freewheel) has front and rear V brakes, fixed gear bikes can be braked by the riders legs pushing against the rotation of the crank.

In my opinion I don't think the omission of a front brake is sufficient evidence to convict for manslaughter.

The prosecution have to show that at the material time the cyclist's conduct fell well below that which could be reasonably expected by the ordinary person and that the cyclist would have been able to avoid the collision had the bike been fitted with a front brake. This is going to be quite a job given the seriousness of the charge.

From MSN: http://www.msn.com/en-gb/news/uknews/cy ... spartandhp

"In a legal first, Alliston is on trial at the Old Bailey for her manslaughter, as well as charged under the 1861 Offences Against the Person Act of causing bodily harm to Mrs Briggs by “wanton or furious driving”.

Interestingly when ‘wanton or furious cycling’ which is a criminal offence under section 35 of the Offences Against the Persons Act 1861, was enacted most bikes looked like this:

No brakes fixed cranks. :shock:

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by Brian73
11 Aug 2017, 9:07pm
Forum: Bikes & Bits – Technical section
Topic: Cable disc brakes question.
Replies: 13
Views: 1059

Re: Cable disc brakes question.

TRP Spyre seem to be the best cable discs at the moment

They use a dual piston operation

http://road.cc/content/review/90569-trp ... disc-brake
by Brian73
9 Aug 2017, 8:04pm
Forum: Bikes & Bits – Technical section
Topic: SPA CYCLES STEEL TOURING FRAMES
Replies: 223
Views: 24757

Re: SPA CYCLES STEEL TOURING FRAMES

This was the best steel bike I ever had

Peugeot Audax

Made in Italy, it had oversized Cr-Mo tubes and was stiff, but not overly so. I sold it when I got the Bob Jackson, wished I'd kept it now. :(

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