Search found 190 matches

by bgnukem
15 Oct 2019, 4:39pm
Forum: Bikes & Bits – Technical section
Topic: Cantilever brakes
Replies: 26
Views: 984

Re: Cantilever brakes

Maybe try some softer pads, I recommend Koolstop Salmon (they are brownish in colour), which are soft compound and intended for use in the wet. They are also less prone than most to picking up aluminium fragments from the rim and then wearing out your rims. In fact, check the current blocks for embe...
by bgnukem
15 Oct 2019, 4:29pm
Forum: Bikes & Bits – Technical section
Topic: Shimano chainsets and chainrings
Replies: 15
Views: 608

Re: Shimano chainsets and chainrings

Thanks OP for an informative post! :D The choice of triples compatible with square taper bottom brackets seems to have dropped right off. I'd have liked a 9-speed compatible triple to use for my new bike build but have had to use a Spa XD2 triple which seems to work OK with 7/8-speed but not 9 from ...
by bgnukem
14 Oct 2019, 5:20pm
Forum: Bikes & Bits – Technical section
Topic: Rim thickness - worn out?
Replies: 101
Views: 2507

Re: Rim thickness - worn out?

Tyre max. pressure will be the limiting factor in overpressure testing rims. Having said that, a wider tyre at lower pressures can exert an equivalent force on the rim to a narrower tyre at higher pressures (though of course the maximum design pressure of the wider tyre will tend to be lower). The r...
by bgnukem
7 Oct 2019, 5:48pm
Forum: Bikes & Bits – Technical section
Topic: Which 9 speed triple for light tourer
Replies: 8
Views: 582

Re: Which 9 speed triple for light tourer

NB if you are changing the tooth difference between the middle and outer 'rings then some front mechs seem to be designed for a 10th difference and some require more. I found out the hard way that the Deore XT (M761) front mech on my commuter bike wouldn't shift with a 10T difference and worked fine...
by bgnukem
2 Oct 2019, 3:52pm
Forum: Bikes & Bits – Technical section
Topic: Rims worn out. Worth re building anymore?
Replies: 28
Views: 828

Re: Rims worn out. Worth re building anymore?

Take hubs apart, check condition of the bearings, axles, freehub, and flanges and hub shells for cracks/corrosion then decide if they are worth rebuilding?
by bgnukem
2 Oct 2019, 2:27pm
Forum: Bikes & Bits – Technical section
Topic: Chain, cassette, chainring- what would you do?
Replies: 21
Views: 843

Re: Chain, cassette, chainring- what would you do?

You're just chasing wear around the tranmission because the chain has been left on too long and has damaged the chainrings and sprockets. Just replace all the 'rings and then use 3 chains in rotation, replacing them when they reach 0.5% wear, then re-use the original chain and keep using them in tur...
by bgnukem
1 Oct 2019, 6:17pm
Forum: Bikes & Bits – Technical section
Topic: Will hub dynos with bearings replacement separate from wiring ever reappear?
Replies: 65
Views: 2041

Re: Will hub dynos with bearings replacement separate from wiring ever reappear?

Anyone know how long SP hub bearings are likely to last before the hub has to be returned to Ison for a rebuild? Have just embarked on another winter with my hub fitted to the commuter, and I usually end up having the hub on the bike for about 6 months of the year so it covers maybe ~1300 miles a ye...
by bgnukem
1 Oct 2019, 6:14pm
Forum: Bikes & Bits – Technical section
Topic: Reports of the death of triple/nine speed greatly exaggerated?
Replies: 34
Views: 1399

Re: Reports of the death of triple/nine speed greatly exaggerated?

Strange... Spa also have the TD2 which is what I'm using for my 9 speed triple. The two largest rings are Spa Zicral, 48T and 38T (the 28T is actually from my XD2) and it works fine with a 9 speed Sora FD. I'm pretty sure that Spa use the XD2 on their own tourer with 9 speed and they must have sold...
by bgnukem
1 Oct 2019, 12:59pm
Forum: Bikes & Bits – Technical section
Topic: Reports of the death of triple/nine speed greatly exaggerated?
Replies: 34
Views: 1399

Re: Reports of the death of triple/nine speed greatly exaggerated?

I'm in a similar position, all my bikes are either 7,8 or 9-speed with triples. Main issues I find are that: i) Only easily available triple for square taper bottom brackets seems to be the Spa Cycles XD2, and I found it doesn't like running with 9-speed chains - kept losing the chain between 'rings...
by bgnukem
27 Sep 2019, 2:53pm
Forum: Bikes & Bits – Technical section
Topic: Upper jockey wheel "brrrrrddpp" shifting to lowest gear, but runs silently once shifted...
Replies: 6
Views: 429

Re: Upper jockey wheel "brrrrrddpp" shifting to lowest gear, but runs silently once shifted...

Better to optimise the mech adjustment for the gears you use most often. I've got two bikes where the rear mech really doesn't like running on the largest sprocket (28T) and literally the top jockey wheel rests on the sprocket while it's turning, there is no more B-tension adjustment available (coul...
by bgnukem
24 Sep 2019, 4:54pm
Forum: Bikes & Bits – Technical section
Topic: Cantilever brakes ..... HELP !!!
Replies: 70
Views: 2243

Re: Cantilever brakes ..... HELP !!!

Cheers Brucey. Will try to adjust straddle angle further. The post mount brake blocks are a PITA to set up though as everything moves at once when they are slackened off. I also still have the original non-adjustable Shimano straddle cable, one side is fixed length. The levers are attached to Rapidf...
by bgnukem
24 Sep 2019, 4:50pm
Forum: Bikes & Bits – Technical section
Topic: If Rotor Uno can do it, why can't Shimano or SRAM!
Replies: 29
Views: 1124

Re: If Rotor Uno can do it, why can't Shimano or SRAM!

Having just spent a week riding a Pinarello around the mountains of Spain with the obligatory 50/34 chainset and 12-28 cassette I would have killed for a triple. Hills were a slog, massive difference between rings meant changing up at the front almost invariably meant changing down at the rear, and ...
by bgnukem
23 Sep 2019, 4:23pm
Forum: Bikes & Bits – Technical section
Topic: Cantilever brakes ..... HELP !!!
Replies: 70
Views: 2243

Re: Cantilever brakes ..... HELP !!!

Still running Cantis on my old Dawes Mean Street but I find the original spec. Deore LX low profile cantis have always been poor, even after setting the straddle cable angle to 90° and fitting better (Kool stop) pads. The OP's brakes are high profile cantis which should be more powerful I think. Can...
by bgnukem
23 Sep 2019, 3:58pm
Forum: Bikes & Bits – Technical section
Topic: If Rotor Uno can do it, why can't Shimano or SRAM!
Replies: 29
Views: 1124

Re: If Rotor Uno can do it, why can't Shimano or SRAM!

For me, loads of one-tooth gaps towards the top of the cassette are a waste of time and I just find myself double-shifting to get a worthwhile increase or reduction in the gearing. I use 12-14-16-18-21-24-28 on all my bikes and just vary the chainring sizes to get the range of gearing I need, with a...
by bgnukem
6 Sep 2019, 11:40am
Forum: Bikes & Bits – Technical section
Topic: Loose seatpost - Spa Aubisque frameset
Replies: 67
Views: 3963

Re: Loose seatpost - Spa Aubisque frameset

Cheers. Might end up doing that if the machined seat post slips in the frame!