A DARING duo have vowed to try again after they fell just 10 mph short of breaking a record.

Dave Le Grys from Little Horkesley, and Neil Campbell, from Colchester, attempted to break the British Motor Paced Cycle Land Speed Record.

It was set in 2013 when racing motorcyclist and TV presenter Guy Martin reached 112.9mph, with Dave’s help.

In a bid to smash the record by reaching 115mph, Dave and Neil spent £1,000 adapting a 20-year-old tandem.

With Neil on the saddle, it started off by being towed up along the runway at Elvingdon Airfield, near York by a pace car.

Another car, driven by Dave, was in front of that.

Once the cars got up to 70mph, the bike detached and travelled in the cars’ slipstream, with Neil trying to pedal the speed up to 115mph.

Attempts were made to break the record on Wednesday and Thursday before they postponed them after reaching 105mph.

Dave, 60, said: “You have got to think of it as a bit 'Scrapheap Challenge'.

"If we had been able to get the first car travelling fast enough we would have smashed the record but the car wasn't up to speed. It needed more power.

"We are going to go back in the spring and have another go."

The Audi will undergo tweaks ready for the next try.

The cycle had been modified using items including an old hospital crutch, bits of old cars, knicker elastic and an ex-RAF parachute.

The pair’s Operation Pacemaker team aimed to break the record in aid of the British Heart Foundation and have already raised more than £1,000.

Dave recently underwent open-heart surgery to repair a mitral heart valve.

In 1986, he set the British and Commonwealth cycle land speed record, riding at 110mph behind a British Touring race car on a closed section of the M42.

And in 2013, he trained Guy Martin, for his current record, an attempt featured in the TV series, Speed.

Neil, 43, lost his mother suddenly in 2012 to a previously undiagnosed heart condition To sponsor them, visit just giving.com/operationpacemaker