Search found 1260 matches

by Rob Frankham
Wed Feb 11, 2026 3:12 am
Forum: Post 1970 Airheads
Topic: 10 years later........
Replies: 23
Views: 6850

Re: 10 years later........

On the bearing subject... Many years ago, I had the same problem on a 'snowflake rear'. I found a local machine shop that was able to machine out the recess in the wheel and fit a steel insert. Worked perfectly till the bike (a R45) dropped an exhaust valve... (but it had done a couple of hundred mi...
by Rob Frankham
Sat Jan 31, 2026 5:43 am
Forum: Post 1970 Airheads
Topic: R80 Mono Caliper Alignment V2.0
Replies: 11
Views: 1670

Re: R80 Mono Caliper Alignment V2.0

Hamstring injuries are a real pain (Hah!). I hope Mrs H has a quick and successful recovery.

Rob
by Rob Frankham
Fri Jan 30, 2026 9:57 am
Forum: Post 1970 Airheads
Topic: R80 Mono Caliper Alignment V2.0
Replies: 11
Views: 1670

Re: R80 Mono Caliper Alignment V2.0

First point... BMW did mount single calipers on the right as well as on the left... not sure of the dates or models but, since all monos use the same components, it may even have been arbitrary dependant on what they had in stock at the time. There's no reason for it to make any difference. I would ...
by Rob Frankham
Fri Jan 23, 2026 5:11 am
Forum: Post 1970 Airheads
Topic: Deep Oil Pan
Replies: 5
Views: 1610

Re: Deep Oil Pan

Yeah, I'm pretty sure the early centerstands will hit that. Absolutely correct... In fact I think that is why, in 1980, BMW moved away from the centre stand they had used from 1969, replacing it with the much weaker and wear prone stand that required a redesign around a year later (which didn't hel...
by Rob Frankham
Thu Jan 22, 2026 6:29 am
Forum: The Open Road
Topic: Looking for info on London rental
Replies: 4
Views: 2175

Re: Looking for info on London rental

Just put Motorcycle Rentals London into Google, there are numerous companies shown.

Rob
by Rob Frankham
Thu Jan 22, 2026 6:27 am
Forum: Post 1970 Airheads
Topic: Deep Oil Pan
Replies: 5
Views: 1610

Re: Deep Oil Pan

The simple answer is, if it's a stock BMW pan from a later model, it won't fit or rather it will fit but the rearmost crossover will foul the pan. You can't 'just fit' a later main stand, the attachments are different and, in any case, you wouldn't want to. The later stand is not good. Certain after...
by Rob Frankham
Tue Jan 20, 2026 5:46 am
Forum: Post 1970 Airheads
Topic: 5 speed trans shimming
Replies: 4
Views: 1797

Re: 5 speed trans shimming

It does seen quite high but, if that's what it takes, then thats what you need to use. If you're completely satisfied with your measurements than go for it, but I would be inclined to do the math again just to check. That being said, if the shims are too thick, the gearbox will be tight once the cov...
by Rob Frankham
Sat Jan 17, 2026 6:14 am
Forum: Post 1970 Airheads
Topic: Fork Oil
Replies: 6
Views: 2018

Re: Fork Oil

The 'W' rating of fork oil is not actually very helpful, except in general terms. It describes the viscosity of a given oil at 0 degrees c and has little bearing on the performance at any other temperature. BMW recommended specific oils for forks varying between 2.5W and 10W with many that didn't qu...
by Rob Frankham
Wed Jan 14, 2026 6:16 am
Forum: Post 1970 Airheads
Topic: yes, yet another stuck fuel cap
Replies: 12
Views: 6322

Re: yes, yet another stuck fuel cap

Thanks Rob. I will keep on spraying penetrating oil into the lock. I have also tried the rope trick but nothing budged. I will try again & try to be braver. I have used the 'rope trick' but only on one occasion and yes, it did work. On that occasion, I was able to clean up the locking mechanism...
by Rob Frankham
Wed Jan 14, 2026 5:23 am
Forum: Post 1970 Airheads
Topic: yes, yet another stuck fuel cap
Replies: 12
Views: 6322

Re: yes, yet another stuck fuel cap

Don't know what you're 'best efforts' are but if you haven't done so, I would certainly try injecting a good releasing fluid or penetrating oil directly into the lock, then leave it for a week, possibly adding more fluid daily. It's worth trying to free the lock rather than risking destroying the ca...