Search found 14 matches

by michael432000
12 Oct 2014, 12:48pm
Forum: Bikes & Bits – Technical section
Topic: Servicing Mavic hubs
Replies: 6
Views: 1621

Re: Servicing Mavic hubs

I am running Mavic 531 hubs and I have noticed some play in the front one. It’s annoying because they’ve only done around 160,000 miles. I’ve never done it before but it looks easy enough to replace the bearings according to this diagram: http://www.yellowjersey.org/MAVIC501.JPG Q) How tight should...
by michael432000
11 Oct 2014, 2:35pm
Forum: Bikes & Bits – Technical section
Topic: Servicing Mavic hubs
Replies: 6
Views: 1621

Re: Servicing Mavic hubs

I am running Mavic 531 hubs and I have noticed some play in the front one. It’s annoying because they’ve only done around 160,000 miles. I’ve never done it before but it looks easy enough to replace the bearings according to this diagram: http://www.yellowjersey.org/MAVIC501.JPG Q) How tight should ...
by michael432000
20 Jul 2014, 10:07am
Forum: Bikes & Bits – Technical section
Topic: SRAM A2 Automatix; introduction to the internals
Replies: 110
Views: 191248

Re: SRAM A2 Automatix; introduction to the internals

I have one in good condition (not used much) with a coaster brake. The spring needs attention because it changes up even earlier than it should do. It comes with a pair of stock Swift Folder wheels and almost new Schwalbe Big Apple tyres and inner tubes. Free. Anyone interested can pick up from Ilfo...
by michael432000
27 Jun 2013, 2:20pm
Forum: Bikes & Bits – Technical section
Topic: Rear hub question
Replies: 1
Views: 253

Re: Rear hub question

Just found this link to PMP hubs:

http://www.pmpbike.net/image/CatalogoPMP_eng_part2.pdf

(Page 2)

Looks like I need the K022. I want to use a Shimano cassette too.
by michael432000
27 Jun 2013, 1:56pm
Forum: Bikes & Bits – Technical section
Topic: Rear hub question
Replies: 1
Views: 253

Rear hub question

I’m about to order a PMP K023 11-speed rear hub. It is for a folder with 20” 406 wheels and I want to keep it simple and run a 9-speed cassette with a bar-end friction shifter. The seller has stated: “The hub is 11 speed ready but use the spacer for 8,9,10.” Just checking to make sure I will have no...
by michael432000
27 Jun 2013, 8:06am
Forum: Bikes & Bits – Technical section
Topic: First Wheel Building Experience
Replies: 84
Views: 170574

Re: First Wheel Building Experience

That was a very useful and well-presented video. Another trick I use is to mount one side of a new tyre on the rim and then lever it off before turning it around and mounting tyre and inner tube properly. Velocity Razor profile (shallow depth compared to Aeroheat): http://store.velocityusa.com/p/raz...
by michael432000
26 Jun 2013, 8:55am
Forum: Bikes & Bits – Technical section
Topic: First Wheel Building Experience
Replies: 84
Views: 170574

Re: First Wheel Building Experience

Thank you for that useful link squeaker.

Some people have complained that mounting and dismounting tyres, on 20” 406 wheels, with narrow Velocty Razor rims is extremely difficult with reports of tyre/tube and lever damage. Apparently the wider Aeroheat rim doesn’t present this problem.
by michael432000
25 Jun 2013, 8:31am
Forum: Bikes & Bits – Technical section
Topic: First Wheel Building Experience
Replies: 84
Views: 170574

Re: First Wheel Building Experience

I will take your advice and go for something more conventional. It’s just that I want them light, and low spoke rims and hubs (20h/24h) seem hard to source. I fancied the Velocity Aeroheat rims but they are only available in 32h and 36h as far as I can see. Foldingbikes.co.uk can make me a set of 20...
by michael432000
24 Jun 2013, 12:23pm
Forum: Bikes & Bits – Technical section
Topic: First Wheel Building Experience
Replies: 84
Views: 170574

Re: First Wheel Building Experience

I don’t know much about wheel building other than what I have read recently. I need a pair of 406 size wheels for a folder and I like the look of this 16-spoke X1 wheel for the front: http://www.bikesmithdesign.com/Paul/16x1wheel.jpg Looks easy to lace but would it be difficult to get enough tension...
by michael432000
20 Jan 2013, 10:23am
Forum: Bikes & Bits – Technical section
Topic: SRAM A2 Automatix; introduction to the internals
Replies: 110
Views: 191248

Re: SRAM A2 Automatix; introduction to the internals

I used to do regular criterium races, which is endlessly sprinting out of bends, so trained specifically for very fast leg speed on a turbo trainer. Yes, half a turn of preload is the only way I can see it fitting. In fact there is only one obvious way to put the weight and spring back on. It’s just...
by michael432000
20 Jan 2013, 6:56am
Forum: Bikes & Bits – Technical section
Topic: SRAM A2 Automatix; introduction to the internals
Replies: 110
Views: 191248

Re: SRAM A2 Automatix; introduction to the internals

Hey, thanks Brucey, you’ve made me have a rethink. For some reason I was thinking that the lower gear would be the main gear because presumably it is the straight-through gear and the higher gear that engages some extra mechanism would be used less frequently. My fast commute out of London and back ...
by michael432000
19 Jan 2013, 2:15pm
Forum: Bikes & Bits – Technical section
Topic: SRAM A2 Automatix; introduction to the internals
Replies: 110
Views: 191248

Re: SRAM A2 Automatix; introduction to the internals

Considering I purchased the bike second hand, the innards are quite clean with more grease than I expected. I’m pretty sure that the spring shift point has already been adjusted because on 20” wheels and with a 52/16 gear I am able to reach a sensible speed (if I accelerate slowly and smoothly) befo...
by michael432000
15 Jan 2013, 9:48pm
Forum: Bikes & Bits – Technical section
Topic: SRAM A2 Automatix; introduction to the internals
Replies: 110
Views: 191248

Re: SRAM A2 Automatix; introduction to the internals

Thank you so much for your quick response. I will make myself a 22mm flat wrench spanner and take a good look at the weekend.

Updated information noted and appreciated, thank you again.
by michael432000
15 Jan 2013, 9:24pm
Forum: Bikes & Bits – Technical section
Topic: SRAM A2 Automatix; introduction to the internals
Replies: 110
Views: 191248

Re: SRAM A2 Automatix; introduction to the internals

Hi there! Complete hub gear novice here. I’ve never used a hub gear and probably won’t in the future unless they can really lighten them up. However, I recently purchased a second hand bike, it was the frame I was interested in, and it came with one of these SRAM 2 speed auto hubs with a coaster bra...