Ring Shims

All rebuildable suspensions need shims & washers, and Teknik stocks the largest collection — more than 2 million in stock. Our range includes complete bulk kits, ring shims, check shims, cup washers and valve stop washers. If you need to swap damping shims please see our Shim Factor Calculator — one 0.30mm shim is NOT the same as two 0.15mm shims.

Role of ring shims in specialist valving

Ring shims have a thin outer edge and are used for reinforcing and spacing in specialist shim stacks.
Essential wear parts for both front forks and rear shocks; replace during every rebuild.
Pair with locknuts, teflon-lined shaft collars, refill springs and o-rings for correct assembly — see fork and shock bushings below.
Available in bulk kits for workshops and DIY suspension tuners.

Recommended Pairings

Consider matching ring shims with fork locknuts & bushes, shock locknuts & bushes and suspension tools. For related technical reading see lock nuts and fasteners or our suspension fluid weights table. Also view Suspension Tools.

Shop Ring Shims

Browse our ring shim selection to find the correct sizes and kits for your fork or shock rebuilds.

21 Products Found

Ring Shim - 15 x 17 x .15

15mm id x 17mm od x 0.15mm Thickness
(SKU: 15.17.15RingShim)

Inside Diameter d (mm): 15.0

Thickness (mm): 0.15

Outside Ø D (mm): 17.0

$0.83
4720 In Stock

Ring Shim - 15 x 18 x .25

15mm id x 18mm od x 0.25mm Thickness
(SKU: 15.18.25RingShim)

Inside Diameter d (mm): 15.0

Thickness (mm): 0.25

Outside Ø D (mm): 18.0

$0.83
4770 In Stock

Ring Shim - 18 x 20 x .15

18mm id x 20mm od x 0.15mm Thickness
(SKU: 18.20.15RingShim)

Inside Diameter d (mm): 18.0

Thickness (mm): 0.15

Outside Ø D (mm): 20.0

$0.83
4850 In Stock

Ring Shim - 19 x 26 x .20

19mm id x 26mm od x 0.20mm Thickness
(SKU: 19.26.20RingShim)

Inside Diameter d (mm): 19.0

Thickness (mm): 0.20

Outside Ø D (mm): 26.0

$0.94
6850 In Stock

Ring Shim - 27 x 30 x .30

27mm id x 30mm od x 0.30mm Thickness
(SKU: 27.30.30RingShim)

Inside Diameter d (mm): 27.0

Thickness (mm): 0.30

Outside Ø D (mm): 30.0

$0.83
4650 In Stock

Ring Shim - 29 x 32 x .20

29mm id x 32mm od x 0.20mm Thickness
(SKU: 29.32.20RingShim)

Inside Diameter d (mm): 29.0

Thickness (mm): 0.20

Outside Ø D (mm): 32.0

$0.83
4650 In Stock

Ring Shim - 29 x 32 x .25

29mm id x 32mm od x 0.25mm Thickness
(SKU: 29.32.25RingShim)

Inside Diameter d (mm): 29.0

Thickness (mm): 0.25

Outside Ø D (mm): 32.0

$0.83
4800 In Stock

Ring Shim - 29 x 32 x .30

29mm id x 32mm od x 0.30mm Thickness
(SKU: 29.32.30RingShim)

Inside Diameter d (mm): 29.0

Thickness (mm): 0.30

Outside Ø D (mm): 32.0

$0.83
4560 In Stock

Ring Shim - 30 x 32 x .20

30mm id x 32mm od x 0.20mm Thickness
(SKU: 30.32.20RingShim)

Inside Diameter d (mm): 30.0

Thickness (mm): 0.20

Outside Ø D (mm): 32.0

$0.83
3650 In Stock

Ring Shim - 30 x 32 x .25

30mm id x 32mm od x 0.25mm Thickness
(SKU: 30.32.25RingShim)

Inside Diameter d (mm): 30.0

Thickness (mm): 0.25

Outside Ø D (mm): 32.0

$0.83
4810 In Stock

Ring Shim - 30 x 32 x .30

30mm id x 32mm od x 0.30mm Thickness
(SKU: 30.32.30RingShim)

Inside Diameter d (mm): 30.0

Thickness (mm): 0.30

Outside Ø D (mm): 32.0

$0.83
3380 In Stock

Ring Shim - 30 x 34 x .20

30mm id x 34mm od x 0.20mm Thickness
(SKU: 30.34.20RingShim)

Inside Diameter d (mm): 30.0

Thickness (mm): 0.20

Outside Ø D (mm): 34.0

$0.83
4870 In Stock

Ring Shim - 30 x 34 x .30

30mm id x 34mm od x 0.30mm Thickness
(SKU: 30.34.30RingShim)

Inside Diameter d (mm): 30.0

Thickness (mm): 0.30

Outside Ø D (mm): 34.0

$0.83
4690 In Stock

Ring Shim - 32 x 34 x .30

32mm id x 34mm od x 0.30mm Thickness
(SKU: 32.34.30RingShim)

Inside Diameter d (mm): 32.0

Thickness (mm): 0.30

Outside Ø D (mm): 34.0

$0.83
3260 In Stock

Ring Shim - 32 x 35 x .20

32mm id x 35mm od x 0.20mm Thickness
(SKU: 32.35.20RingShim)

Inside Diameter d (mm): 32.0

Thickness (mm): 0.20

Outside Ø D (mm): 35.0

$0.83
5340 In Stock

Ring Shim - 32 x 35 x .40

32mm id x 35mm od x 0.40mm Thickness
(SKU: 32.35.40RingShim)

Inside Diameter d (mm): 32.0

Thickness (mm): 0.04

Outside Ø D (mm): 35.0

$0.83
5290 In Stock

Ring Shim - 34 x 36 x .20

34mm id x 36mm od x 0.20mm Thickness
(SKU: 34.36.20RingShim)

Inside Diameter d (mm): 35.0

Thickness (mm): 0.20

Outside Ø D (mm): 36.0

$0.83
4700 In Stock

Ring Shim - 34 x 36 x .25

34mm id x 36mm od x 0.25mm Thickness
(SKU: 34.36.25RingShim)

Inside Diameter d (mm): 34.0

Thickness (mm): 0.25

Outside Ø D (mm): 36.0

$0.83
3200 In Stock

Ring Shim - 34 x 36 x .30

34mm id x 36mm od x 0.3mm Thickness
(SKU: 34.36.30RingShim)

Inside Diameter d (mm): 34.0

Thickness (mm): 0.30

Outside Ø D (mm): 36.0

$0.83
3870 In Stock

Ring Shim - 38 x 40 x .30

38mm id x 40mm od x 0.30mm Thickness
(SKU: 38.40.30RingShim)

Inside Diameter d (mm): 38.0

Thickness (mm): 0.30

Outside Ø D (mm): 40.0

$0.83
4430 In Stock