Hutt Valley Riding for the Disabled administration manager Bronwyn Hussy in the organisation's Silverstream arena soon after the first bike theft, on July 24.

Thieves have struck for a second time at a horse riding organisation for the disabled.

A red quad bike was stolen from the Hutt Valley Riding for the Disabled organisation in Silverstream overnight on Wednesday.

Burglars used an angle grinder to break a heavy duty padlock, then cut through fences and used planks of wood to elevate the bike to a place it could be taken away on a trailer.

The bike was a loan-replacement for the non-profit organisation's original quad bike, which was taken in a similar burglary in July.

READ MORE: Quad bike worth $10,000 stolen from Hutt Valley Riding for the Disabled

Administration manager Bronwyn Hussy was gutted the group had been targeted again.

"We have a quote from a security company to update our premises, and in the meantime we stored the bike in a lockup, with heavy padlocks that would not be broken by heavy-duty bolt cutters.

"The police can't believe the effort its taken to get the quad out."

Based on County Lane in Upper Hutt, the centre provides opportunities for anyone with a disability to enjoy safe, therapeutic horse riding and horse-related activities.

Damage to the compound is estimated at about $400, but Hussey says the burglary will mostly affect the volunteers who use the quad for harrowing the arena.

"It keeps the surface nice and soft for the horses and the people to ride on.

"We've only had it for two weeks, and now our poor volunteers will have to hand-rake the arena."

Hussey had a simple message: "I would like it back. If someone wants to give it back to us, they can do it anonymously or call the police and anonymously say where it is."

Police are continuing to investigate, and anyone with information can contact police on 04 381 2000.