Search found 29457 matches

by Brucey
15 Jul 2018, 3:51pm
Forum: Bikes & Bits – Technical section
Topic: Granny gear for 2016 CAADX 105
Replies: 10
Views: 196

Re: Granny gear for 2016 CAADX 105

chainset https://www.spacycles.co.uk/m2b0s109p3383/SPA-CYCLES-Super-Compact-Chainset-with-Zicral-Rings add ~£15 for a suitable BB gear ratios for 44,26 double onto 11-32T cassette compared with 50,34 double onto 11-40T cassette here http://www.ritzelrechner.de/?GR=DERS&KB=26,44&RZ=11,12,14,1...
by Brucey
15 Jul 2018, 10:08am
Forum: Bikes & Bits – Technical section
Topic: Sturmey-Archer X-RD8 (W) hub gear - disassembly and maintenance
Replies: 3
Views: 112

Re: Sturmey-Archer X-RD8 (W) hub gear - disassembly and maintenance

I would say that fitting an oil port would be quite easy to do but that oil might not be the best lube for this hub. The reason I say this is that the loadings are so high on the stage 1 pinion bushings that a SFG which is loaded up with solid lubricants is probably necessary to give these parts a d...
by Brucey
15 Jul 2018, 9:55am
Forum: Bikes & Bits – Technical section
Topic: BB7s - Road Vs MTB
Replies: 40
Views: 852

Re: BB7s - Road Vs MTB

er, that is because they are not BB7s, but more cheaply made (YUS) copies of BB7s. They might be OK, they might not, but IMHO that isn't really good enough if it is a brake you are talking about. cheers Yeah, you have to be real careful about counterfeit products from China sold on eBay and Amazon....
by Brucey
15 Jul 2018, 9:20am
Forum: Bikes & Bits – Technical section
Topic: Correct chainset
Replies: 1
Views: 106

Re: Correct chainset

the chainring supplied with that chainset is meant for 1/8" chain; 8s chain is too narrow to fit on the teeth. I have filed the thickness of such teeth down, to make a DIY 'thick-thin' chainring, but it is a lot of work. If you use a standard chainring (meant for use as part of a double chainse...
by Brucey
15 Jul 2018, 9:13am
Forum: Does anyone know … ?
Topic: Please recommend a good-quality 8-speed chain
Replies: 6
Views: 275

Re: Please recommend a good-quality 8-speed chain

...Re Sram (good in my book), the Sram boss says all levels of the chains have the same hardness metal, so wear will be fairly similar across the range. .... the bottom end chain that SRAM make has never been as hard wearing as the others. I understand it that PC830 currently occupies that particul...
by Brucey
15 Jul 2018, 9:01am
Forum: Bikes & Bits – Technical section
Topic: Sturmey-Archer X-RD8 (W) hub gear - disassembly and maintenance
Replies: 3
Views: 112

Re: Sturmey-Archer X-RD8 (W) hub gear - disassembly and maintenance

you can see how the hub is assembled here; http://www.sturmey-archer.com/files/catalog/files/34/PART%20LIST%20-%20X-RD8.pdf If you undo the LH cone and the ball ring, the centre will slide out. Then remove snap ring #16, and the planet stages will then slide off the axle in succession. They should n...
by Brucey
14 Jul 2018, 10:44pm
Forum: Bikes & Bits – Technical section
Topic: Tiagra 4700
Replies: 6
Views: 175

Re: Tiagra 4700

shift ratio isn't exactly 1.7 BTW... (and nor is it 1.1 and 1.2 for MTB 11s and 10s systems either).

If you use 8s shifters on a 9s cassette with RD-4700 you might get good shifting but only over eight sprockets...

cheers
by Brucey
14 Jul 2018, 10:39pm
Forum: Bikes & Bits – Technical section
Topic: lowering my 105 11 speed - help!
Replies: 7
Views: 205

Re: lowering my 105 11 speed - help!

there are two sorts of shimano 11s cassette; 'MTB' and 'road'. 'MTB' 11s cassettes are short enough that they fit onto 10s freehub bodies and 'road' 11s cassettes are less indented on the left side and only fit onto longer 11s specific freehub bodies. My understanding is that SRAM 11s cassettes are ...
by Brucey
14 Jul 2018, 10:18pm
Forum: Bikes & Bits – Technical section
Topic: Tiagra 4700
Replies: 6
Views: 175

Re: Tiagra 4700

In a recent post I can no longer find, someone was stating that the new 4700 Tiagra was not compatible with other 10 speed systems. Do I remember right? But in terms of compatibility, I would like to know if I can use the 4700 rear mech with 9-speed XT shifters or if it won’t work. Obviously I will...
by Brucey
14 Jul 2018, 3:40pm
Forum: Bikes & Bits – Technical section
Topic: Smaller Chainrings with Shimano FD
Replies: 16
Views: 280

Re: Smaller Chainrings with Shimano FD

I think your original FD will be fine because the intervals are similar. Using an FD that is meant for (say) a 13T interval is unlikely to work anywhere near as well, IME. Even an 11T design interval on a 10T interval leaves the FD slightly higher wrt the outer chainring.

cheers
by Brucey
14 Jul 2018, 3:36pm
Forum: Bikes & Bits – Technical section
Topic: Spocalc
Replies: 20
Views: 526

Re: Spocalc

The Pinkbike article says "To meet this demand, we have spoke manufacturing facilities in Europe, Asia and I'm proud to say, the United States" so I doubt they are still using Phil Wood thread rolling machines since they have a manufacturing facility in the US. yeah, but it doesn't say wh...
by Brucey
14 Jul 2018, 8:10am
Forum: Bikes & Bits – Technical section
Topic: Old Suntour 6 speed - could it be indexed ?
Replies: 2
Views: 314

Re: Old Suntour 6 speed - could it be indexed ?

everything you ever wanted to know about Sun Tour indexing (almost...) to be found here http://www.yellowjersey.org/Suntour21.pdf IME the shift ratio used by suntour accushift is almost identical to that used by shimano for their 7400 series Dura-Ace models (about 1.8:1, vs the nominal 1.7:1 (actual...
by Brucey
14 Jul 2018, 7:05am
Forum: Does anyone know … ?
Topic: Moulton tsr 8
Replies: 15
Views: 538

Re: Moulton tsr 8

fossala wrote: ….. If you want flat bars it has a longer "top tube". I don't know why Moulton uses the same frame for flat bars and drops, no one else does.


well few others use the same frame size for all riders either. Handlebar shape is small beer by comparison?

cheers
by Brucey
14 Jul 2018, 12:05am
Forum: Racing, Olympics, TdF, Competitive cycling
Topic: 2018 Tour De France (Spoilers)
Replies: 20
Views: 796

Re: 2018 Tour De France (Spoilers)

with 'freeview play' there is no problem. Nor indeed is there with my 15 year old PVR (examples of which can now be purchased from £25 on gumtree BTW). 'Twas a mighty dull stage though, apart from the last few km when there was *gasp* some actual racing .... I reckon they were all knackered from the...