Search found 210 matches

by bgnukem
3 Dec 2019, 5:58pm
Forum: Bikes & Bits – Technical section
Topic: Chain Care
Replies: 82
Views: 6491

Re: Chain Care

https://www.sportsbikeshop.co.uk/product_images/wurth_hp_performance-dry-chain-lube_1.jpg Motorbike chain lube/wax .... Very good and better than bicyle chain lube IMHO ... £4.99 a can https://www.sportsbikeshop.co.uk/motorcycle_parts/content_prod/29605 ... read the reviews I've got reservations ab...
by bgnukem
3 Dec 2019, 3:01pm
Forum: Bikes & Bits – Technical section
Topic: 8 speed chainset with 9 speed everything else?
Replies: 40
Views: 1133

Re: 8 speed chainset with 9 speed everything else?

Good to know others have used the Spa triple with 9S chains without issues. Gives me some confidence I'll be OK with 9S on my new build. Perhaps I was just unlucky with the cheaper steel 'rings on the triple I used on my Ribble. I like the fact the Spa triple is still available for those of us wanti...
by bgnukem
2 Dec 2019, 12:18pm
Forum: Bikes & Bits – Technical section
Topic: Chain Care
Replies: 82
Views: 6491

Re: Chain Care

Tried that for a while. Rubbing some oil between fingertips it did seem to have a slipperier feeling than motor oil / 3-in-1-type oil, felt more like Finish Line Green.

I found it quite messy though, worse than the FL at picking up muck.
by bgnukem
2 Dec 2019, 12:16pm
Forum: Bikes & Bits – Technical section
Topic: Quick unclog of mudguards?
Replies: 26
Views: 882

Re: Quick unclog of mudguards?

I use a small handheld garden sprayer, but it does tend to get (dirty) water on the chain, bottom bracket, ends of hubs etc where water might get into bearings. Better to use a long stick of screwdriver to push out the muck I reckon, if you have enough crud stuck in there to push it out. Maybe move ...
by bgnukem
2 Dec 2019, 12:10pm
Forum: Bikes & Bits – Technical section
Topic: 8 speed chainset with 9 speed everything else?
Replies: 40
Views: 1133

Re: 8 speed chainset with 9 speed everything else?

To add my experiences here, I tried to use the Spa Cycles triple, Sugino XD-derived which I believe was originally designed for use with 7- or 8-speed, with a 9-speed chain and had issues with the chain getting stuck between 'rings and slipping - loss of drive. I guess this was due to the gaps betwe...
by bgnukem
2 Dec 2019, 11:42am
Forum: Bikes & Bits – Technical section
Topic: gear ratios for Dawes SG
Replies: 18
Views: 651

Re: gear ratios for Dawes SG

Suggest you find the model number (for Shimano, usually something like 'RD-Mxxx', where 'xxx' is a number) on the rear mech then google it to find out the cog capacity, i.e. whether a 34T sprocket can be accommodated?
by bgnukem
2 Dec 2019, 11:40am
Forum: Bikes & Bits – Technical section
Topic: Chain Care
Replies: 82
Views: 6491

EP additives?

Having tried many different chain lubes over the years, including 3-in-1, motor oil, chainsaw oil, Finish Line green, White lightning, White Lightning Epic and Purple Extreme, does anyone know if any of the oil manufacturers include EP additives or solid lubricants in their formulations? Given the b...
by bgnukem
27 Nov 2019, 5:10pm
Forum: Bikes & Bits – Technical section
Topic: Stripped bottom bracket shell
Replies: 18
Views: 9084

Re: Stripped bottom bracket shell

Maybe you don't have to be too drastic. I think Brucey originally suggested heating to around 135°C would soften the epoxy?

Heat the BB gently to that without putting the flame directly on the paint and you might get away without having to repaint the frame.....
by bgnukem
25 Nov 2019, 1:41pm
Forum: Bikes & Bits – Technical section
Topic: Help me spec my new bike
Replies: 25
Views: 1182

Re: Help me spec my new bike

OP, if you are considering using Spa chainsets you might want to check if they will work with narrow 10/11-speed chains. I had an Impact triple from them which, when I tried to use it with a 9-speed chain, experienced the chain repeatedly falling between the middle and outer chainrings, causing loss...
by bgnukem
25 Nov 2019, 1:36pm
Forum: Bikes & Bits – Technical section
Topic: Building from a new frame
Replies: 18
Views: 1109

Re: Building from a new frame

If buying a Spa frame I'd urge you to make sure the seatpost fits properly. I bought an Aubisque steel frameset a year ago and found that their recommended seatpost (27.2) was a loose fit in the frame. Went to the shop and tried my seatpost in other steel frames they had and the same issue. Bought a...
by bgnukem
11 Nov 2019, 6:18pm
Forum: Bikes & Bits – Technical section
Topic: Tyre wear - mileages
Replies: 30
Views: 752

Re: Tyre wear - mileages

Depending on the relative tyre pressures between the large and small wheels, I'd guess greater deformation of the smaller tyre due to the shorter contact area created by the smaller radius of the wheel necessitating greater tyre sidewall deflection to give a wider contact patch and thus the same con...
by bgnukem
8 Nov 2019, 11:46am
Forum: Bikes & Bits – Technical section
Topic: Ineffective Tektro brake
Replies: 13
Views: 651

Re: Ineffective Tektro brake

Apart from possibly different mechanical advantage in the levers, if you've just fitted new blocks (particularly if set up with 'toe in' to avoid squealing) then the chances are they are not worn to match the rims yet and so are not yet making full contact with the rim braking surfaces. I'd expect t...
by bgnukem
8 Nov 2019, 11:42am
Forum: Bikes & Bits – Technical section
Topic: 2.4W dynamo hubs
Replies: 72
Views: 2356

Re: 2.4W dynamo hubs

Question for conRAD: The output table for the dynohub is very interesting, with peak power of around 10.4W into a resistance of 37 ohms at 40kph, far in excess of the usual 3W output rating of these hubs! Were the resistive loads in your table chosen to replicate LED front light set-ups? I currently...
by bgnukem
6 Nov 2019, 7:52pm
Forum: Bikes & Bits – Technical section
Topic: Longest burn time lights.
Replies: 49
Views: 1940

Re: Longest burn time lights.

Yes, but that's the problem. Battery bike lights are not reliable enough to rely on, and battery life often is far less than claimed. Compare with a motorist - the light are built into the car and work whenever it's being driven. A hub dynamo is the equivalent for a bike. One of the reasons I wanted...
by bgnukem
6 Nov 2019, 4:26pm
Forum: Bikes & Bits – Technical section
Topic: Best Track Pump
Replies: 49
Views: 1393

Re: Best Track Pump

Thanks for the suggestions chaps. I think I'll replace the chuck and resist the temptation to splash out on a shiny new track pump :D

Then again, the Lezyne pumps look very shiny! :lol: