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12 1/2 inch mobility inner tube with offset valve

Photo linked from www.epc-wheelchairs.co.uk. Rights belong to the maker.

EPC · Inner tubes - caster and power chair · AC-161

EPC 12 1/2 x 2 1/4 in Mobility Inner Tube, Offset Valve

Last updated: 5 October 2026

Many power chair drive wheels in the 12 1/2 x 2 1/4 in size have the valve hole set to one side of the rim, which calls for a tube with an offset, angled stem. This EPC tube has a Schrader valve offset at 45 degrees. The supplier lists the Invacare Mirage, the Quickie F35 and F45 and the Quickie F16 powerpack among the models it fits.

Type
Power chair and mobility inner tube
Size
12 1/2 x 2 1/4 in
Valve
Schrader, offset 45 degrees
Sold as
Single tube

EPC 12 1/2 x 2 1/4 Mobility Inner Tube Offset key features

  • Sized for 12 1/2 x 2 1/4 in tires
  • Schrader valve offset at 45 degrees
  • Supplier lists Invacare Mirage and Quickie F35, F45 fitments
  • Also listed for the Quickie F16 powerpack
  • A straight-valve version is listed separately by the supplier

Who the EPC 12 1/2 x 2 1/4 Mobility Inner Tube Offset suits

Suits power chair and powerpack owners whose rims have a side-set valve hole, and workshops servicing the named Invacare and Quickie models. If your old tube has a straight central stem, ask us for the non-offset version.

Figures for comparing

Wheel size
12.5 in

The same units on every product, converted from the specifications below. Where a source gives two limits, the lower one is shown.

EPC 12 1/2 x 2 1/4 Mobility Inner Tube Offset specifications

EPC 12 1/2 x 2 1/4 Mobility Inner Tube Offset specifications
TypePower chair and mobility inner tube
Size12 1/2 x 2 1/4 in
ValveSchrader, offset 45 degrees
Sold asSingle tube
Supplier code39B0003 (TUBE12F)
Maker countryNot confirmed
BrandEPC
CategoryWheels, handrims and tires, Inner tubes - caster and power chair
Catalog IDAC-161

Compared with the source page on 5 October 2026. Details can change, so we confirm them in your quote. Open the source page.

EPC 12 1/2 x 2 1/4 Mobility Inner Tube Offset: common questions

How do I know I need the offset valve?

Check where the stem leaves your rim. If the hole is off-centre or the stem is angled, you need the offset tube.

Does the picture show this exact tube?

The supplier uses a shared image across its mobility tubes, so it is illustrative only.

Is tax included?

The supplier price excludes UK tax. Our quote gives the final terms.

How to get a quote for the EPC 12 1/2 x 2 1/4 Mobility Inner Tube Offset

  1. Add it to your enquiry list

    Press Add to enquiry. You can add other products and parts to the same list.

  2. Tell us your country and needs

    Send the list with your country, sizes and any options you want. No payment details are asked.

  3. Get a personal reply

    You receive availability, a price and delivery options by email, and decide after that.

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