As long as you use a brake then you can have a fairly low gear and it can still be okay (65 GI) which makes uphill okay and the flat okay assuming yiou are a spinner rather than masher. Just use the brake to keep speed in check when going downhill.
@kerley started
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As long as you use a brake then you can have a fairly low gear and it can still be okay (65 GI) which makes uphill okay and the flat okay assuming yiou are a spinner rather than masher. Just use the brake to keep speed in check when going downhill.