GRIT GRITJunior, Assembly Manual & User'S Manual

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10.1 In ating the Wheels
It is important to keep the tires at the recommended pressure to prevent ats caused by
under-in ation. Do not over-in ate the tires. Refer to the sidewall of your tires for the ideal
pressure range.
On soft, sandy ground, riding with lower pressure (but still at or above the minimum pressure)
will provide more traction. On pavement, riding with higher pressure will reduce rolling
resistance and make the chair easier to push.
10.2. Chain Tension Adjustment
The GRIT Junior uses a standard bicycle chain, which you should expect to have to
periodically tighten due to chain stretch. Riders have to make this adjustment early on (new
chains stretch the most) and then a couple of times per year, often after heavy use.
Your chain is too loose if you can squeeze it together more than half of an inch or if you’re
experiencing a delay in your lever engagement. The video on this page shows you the full
chain-tensioning process:
https://www.gogrit.us/freedom-chair-support .
10.3. Parking Brake Adjustment
The parking brakes can be adjusted to make them tighter (more braking power) or looser
(easier to engage the brakes). This is especially important if you’ve swapped your stock tires
with a new set. A video tutorial of this process is located here:
https://www.gogrit.us/freedom-chair-support#brakeadjusting
10.4. Changing the Gear Ratio
The GRIT Junior gear ratio can be adjusted in two ways: by changing the chainring size, or by
changing the freewheel. We recommend changing the chainring size since it’s a simpler process,
but both can be easily done at a bicycle shop.
To make the GRIT Junior easier to push (but slower), swap the chainring with a smaller one,
or swap the freewheel with a larger one. To make the GRIT Junior faster (but harder to push),
swap the chainring with a larger one, or swap the freewheel with a smaller one. Either of these
adjustments may require additional/fewer chain links.
For more detailed instructions, contact GRIT at support@gogrit.us or 617-356-8106.
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