Abus ACH 20 8KS85 BKST5950 Adaptor Plug In Chain

Out of Stock ( Call for Availability )
Part Number:




Adding the Adaptor Chain frame lock chain to your ABUS frame lock is a way to double your bikes protection against theft. In the 2.0 version of the chain, the loop ring is additionally covered with a coating to protect it from scratches.

It couldnt be simpler “ with this frame lock chain made of hardened steel, you have the perfect secondary security for your bicycle.

The Adaptor Chain 2.0 frame lock chain from ABUS makes it particularly easy to make your bicycle twice as secure: All you have to do is place the chain around a fixed object, pull the end with the lock through the ring on the chain and attach it to the frame lock housing or the Alarmbox 2.0. You will not need another key, nor will you need to lock the shackle separately. Thanks to the special coating on the ring, the paintwork of the bicycle remains protected when it is connected. The Adaptor Chain 2.0 connecting chain fits all ABUS frame locks with additional lock housing as well as the Alarmbox 2.0.

  • 6 and 8mm square chain made of hardened steel
  • Separate locking of the shackle is not necessary
  • Various connection options
  • Suitable for all ABUS frame locks and the Alarmbox 2.0
  • Special coating on the loop ring protects the bikes paintwork from being damaged
  • ST5950 - Lock bag for transporting the connecting chain
  • Lock bag is attached under the saddle
  • Can be used in combination with a frame lock or the Alarmbox 2.0
  • For securing the bike to a fixed object


  • Weight: 1270g
  • Width: 8mm
  • Length: 85cm


Frame locks are a built-in, basic security system for almost any bike.

These practical frame mounted locks are quick to use to protect your bike by immobilizing it. When combined with other accessories such as plug-in chains or cables your bike can also be locked to an immovable object for even more protection against theft. Frame locks are available either with keys that can be removed when they are open or with keys that cannot be removed.

ABUS covers the full range of mobile security with high-quality U-locks, chain locks and folding locks as well as armoured cable, spiral cable and cable locks.

In addition to various special locks, there is a suitable holder or transport option for almost every lock.

ABUS ACH 2.0 8KS/85 BK+ST5950 Adaptor Plug In Chain

Please note: Manufacturers can sometimes change the specification of the products from time to time.

More reasons to buy from us

We price match all products on a like for like basis.

To qualify the item must be available in stock with a UK supplier and any additional costs taken into consideration.

i.e delivery charges, buyers premium, assembly charges.

Call us on 01823 252499 before you make your purchase to enquire about price matching a product.

Please read our full price match policy.

With all bike sales you will receive an informational bike pack that contains a 15% Off accessories voucher inside.

This voucher is redeemable at your nearest Bicycle Chain, Rock & Road or Climb On Bikes Store.

We currently have stores in Yeovil, Taunton, Bridgwater, Weston-Super-Mare and Hereford.

This is part of our 'Support Local Business' initiative, where we want to see local riders supported by their local bike shops.

We hope to see you in store soon.

When you buy a bike from us in the store or come to collect your Click & Collect order we will adjust your new bike to fit you.

This includes adjusting saddle height, saddle position and where possible adjusting the brake levers / gear shifters.

We will also adjust any accessories you have purchased with your bike where applicable.

When you buy a bike from us you will get a free service at your nearest Bicycle Chain store within 6 weeks of taking delivery of your bike.

The free service is put in place to make sure the bike you have purchased is running correctly and to adjust out any cable stretch that happens to any new bike.

The type of bike you have bought and the type of riding you have planned will affect how soon you need to book your free service.

  • Light use - 6 weeks
  • Daily commuting / moderate use - 4 weeks
  • Hard / aggressive use - After the first 2 rides

However if you experience any issues at any time you should stop riding your bike and book your bike in for its free service immediately.

Contact us

Follow us

Opening times

  • Mon - Sat: 9.00am - 17:30pm
  • Sunday: Closed