His equally soaked wife Christine was pillion passenger on the Yamaha.
The couple's gruelling 1900-mile charity drive from John O'Groats to Land's End — which included 14 petrol stops costing £400 — was almost over.

"The ride was certainly character building for us," Bruce, of Strath Peffer, Law said of the adventure on June 21 and 22.

"We set off from John O'Groats at 4am on my birthday. It was just daylight and no more at that time.

"The weather was absolutely shocking. It hardly stopped raining the whole way down there!

"When we got to Bodmin Moor, I had to slow down to 20mph, the conditions were so poor.

"The only time it seemed to stop raining was when we stopped for petrol. The moment we went back on the bike, it started again.

"The rain definitely made the ride extra challenging for us.

"If you're in a car you have air conditioning, but on a bike you don't. The rain just runs down your neck.

"Towards the end, it was becoming a nightmare. I've been riding motorbikes for 27 years and it was the wettest I've ever been."

A total of 45 brave bikers took part in the John O'Groats to Land's End
challenge — and every single one completed it successfully.

According to Bruce, the convoy included a giant South African who was 7ft tall and weighed 30 stones.

"This guy came all the way from Cape Town," said Bruce, who owns the Best Rider Training motorcycle training company in Shotts.

"He rode through Africa, Tangiers and Europe before meeting everyone at John O'Groats.

"He managed to raise £200 or £300, by just stopping off at the service stations, going inside and asking customers for donations. It was a remarkable effort from him.

"My wife and I also got on fine during the drive. She did well, because I wouldn't have sat behind anyone for that length of time!"

The Robertsons, both 43, were doing the hugely demanding ride for a very special reason. They were determined to raise hundreds of pounds in sponsorship money for Macmillan Cancer Hospice.

"We've both lost family members to cancer," Bruce said.

"And Macmillan Cancer Care were great with both families.

"They provided marvellous care for our relatives before they died."

Bruce revealed that Christine did a fundraiser for Maggie's Cancer Care last year, when she swum a mile with her clothes on.

"Christine did 69.9 lengths at Wishaw Sports Centre," he added.
"Just for sheer badness, we swapped her swimming kit for really heavy cotton stuff!"

* Online donations are still being accepted. Please visit the website at www.thelongestday.org