Search found 1488 matches

by alexnharvey
13 Jun 2021, 8:01pm
Forum: Bikes & Bits – Technical section
Topic: Paint strippers
Replies: 26
Views: 691

Re: Paint stripper's

nosmarbaj wrote: 13 Jun 2021, 12:23pm
alexnharvey wrote: 13 Jun 2021, 5:12am Dichloromethane, DCM, is a very effective paint stripping chemical. It's still available in the star chem product. It's also very, very bad for you, a neurotoxin, which is why it is effectively banned and was removed from most domestic products, which were reformulated.
While the starchem stripper may be "available", from reading the safety sheet linked previously by Jdsk, it seems its use is legally restricted to professional paint shops and similar, so I doubt if you can find it in the likes of Screwfix etc.
You can buy it on eBay if you are willing to tell a little fib, for better or worse.
by alexnharvey
13 Jun 2021, 5:12am
Forum: Bikes & Bits – Technical section
Topic: Paint strippers
Replies: 26
Views: 691

Re: Paint stripper's

Dichloromethane, DCM, is a very effective paint stripping chemical. It's still available in the star chem product. It's also very, very bad for you, a neurotoxin, which is why it is effectively banned and was removed from most domestic products, which were reformulated.

Blasting the frame is another option, no nasty chemicals.
by alexnharvey
12 Jun 2021, 2:35pm
Forum: Bikes & Bits – Technical section
Topic: Paint strippers
Replies: 26
Views: 691

Re: Paint strippers

Jdsk wrote: 12 Jun 2021, 2:28pm
alexnharvey wrote: 12 Jun 2021, 2:12pm Star-chem is often recommended in previous discussions. Haven't tried it myself but if i needed to strip paint it's probably what I'd buy.
I haven't heard of that, but if I've got the right stuff it's mostly dichloromethane, as in the old Nitromors:
https://www.spraygunsdirect.co.uk/media ... safety.pdf

Jonathan
Hi Jonathan, yes, I think that is why it's recommended.
by alexnharvey
12 Jun 2021, 2:12pm
Forum: Bikes & Bits – Technical section
Topic: Paint strippers
Replies: 26
Views: 691

Re: Paint stripper's

Star-chem is often recommended in previous discussions. Haven't tried it myself but if i needed to strip paint it's probably what I'd buy.

It's never too late to learn good punctuation and it's not an either or, you can have the discussion and the lesson in parallel. :D
by alexnharvey
8 Jun 2021, 6:17pm
Forum: Bikes & Bits – Technical section
Topic: Headset Press Disaster
Replies: 36
Views: 1449

Re: Headset Press Disaster

Add solid to water, slowly, and don't hold the vessel.

It'll remove the paint too, caustic solutions are also used to strip paint.

Would a cranked punch allow you to knock it out?
by alexnharvey
1 Jun 2021, 9:14pm
Forum: Bikes & Bits – Technical section
Topic: Removing FSA crank which has no central socket screw
Replies: 4
Views: 166

Re: Removing FSA crank which has no central socket screw

PAB855 wrote: 1 Jun 2021, 9:04pm Is it done by removing the non drive crank, which effectively is securing both cranks then pulling the drive crank off.
Yes. Does the FSA crank in this video look similar to yours and provide the explanation you need?

https://www.parktool.com/blog/repair-he ... on-slotted
by alexnharvey
29 May 2021, 1:37pm
Forum: For Sale - bits of bikes, etc.
Topic: Sold> Roswheel lowrider.
Replies: 2
Views: 537

Re: Five 700c/28" rims. Full boxes of 280 and 282 mm ACI DB spokes.

If you decide to split I'd be interested in the halo rim.
by alexnharvey
25 May 2021, 9:22am
Forum: Bikes & Bits – Technical section
Topic: Velo Orange Sabot Pedals
Replies: 25
Views: 1111

Re: Velo Orange Sabot Pedals

elPedro666 wrote: 25 May 2021, 6:46am Was also going to recommend the indestructible DMR V12 (I use the newer shape Magnesium on an mtb and the grip is phenomenal and the bearings legendary), but no reflectors, so instead was going to suggest the Wellgo copies. My partner has a set of Magnesium Wellgo on her mtb and they have stood up to endless filth and pressure washing for year now without complaint (just the pedals, not her [emoji38]) are very light and are a bargain to boot (pun very much intended! [emoji39]). Those do have reflector mounts.

Hopefully the OP is sorted now (Shimano is also a great choice I think), but may be useful to someone else.

I'm a trendy consumer. Just look at my VOG-L09 using hovercraft full of eels.
DMR V12 use a combination of bushings and sealed bearings.
by alexnharvey
24 May 2021, 4:42pm
Forum: Bikes & Bits – Technical section
Topic: thorn adventure tandem, front bottom bracket
Replies: 27
Views: 805

Re: Thorn adventure tandem, front bottom bracket

These are particularly well balanced tandems in that they also have two nuts on the bottom.
by alexnharvey
24 May 2021, 2:03pm
Forum: Bikes & Bits – Technical section
Topic: Clone Brooks saddles
Replies: 10
Views: 906

Re: Clone Brooks saddles

Sorry, I thought you were talking about taking the rivets out and swapping the leather which would be a lot of work for very little gain.

I once installed large copper hand hammered rivets on a brook that previously had small steel rivets. It was especially tricky peening the nose ones because access is tight.
by alexnharvey
24 May 2021, 1:34pm
Forum: Bikes & Bits – Technical section
Topic: Recommendations on protecting frame with a tape
Replies: 10
Views: 509

Re: Recommendations on protecting frame with a tape

On my commuting/utility bike I particularly try to protect the areas that will rest or rub against objects when I park my bike at a stand, or which the lock or another parked bike may contact. Top tube, outer faces of forks and seat stays, sides of the downtube and seat tube.

Then there are some other places which are potentially marked during cycling itself, the driveside chainstay as you mention, possibly stone chips on the lower face of the down tube and rear of seat tube, cable rub around the sides of the headtube.

I bought one of the non-3M protective tapes from paragon tapes on ebay. I haven't used the real stuff so can't compare the two. With good surface prep, clean and degrease, it seems to stick relatively well and no corners are lifting but then it has only been 6 weeks since application.
by alexnharvey
24 May 2021, 1:01pm
Forum: Bikes & Bits – Technical section
Topic: Clone Brooks saddles
Replies: 10
Views: 906

Re: Clone Brooks saddles

When I contacted Brooks recently they informed me that they no longer offer a leather replacement service so maybe not supplying the leather is part of that policy. It's very unfortunate.

I think the leather itself is the most important part of the saddle and the frame is relatively unimportant. I am also not sure if any clone is a close enough copy that it will fit on the brooks frame? If you have a complete clone that is comfortable enough what benefit do you expect to achieve from swapping the leather onto a new frame, if it even fits?
by alexnharvey
23 May 2021, 7:27pm
Forum: Bikes & Bits – Technical section
Topic: Vintage structural frame fasteners
Replies: 20
Views: 684

Re: Vintage structural frame fasteners

Is there any basis to your concern that an 8.8 bolt (or the equivalent Imperial grade) would not be strong enough? What is the strength of such a bolt and what do you estimate the load is?
by alexnharvey
22 May 2021, 9:34am
Forum: On the road
Topic: Time to speed up commute
Replies: 35
Views: 1229

Re: Time to speed up commute

3speednut wrote: 22 May 2021, 7:01am Yes, comute year round in all weather's.
Ha, sorry, I thought you might be a retiree :shock: :lol: