Pro Repair Stand With Single Clamp, Auto Adjustable

A workshop-grade single-arm repair stand with a fixed base plate, an auto-adjustable clamp head whose spring-set jaws take a 24–32 mm seatpost or tube without a pre-measure step, and the load capacity to take 30 kg of bike on the clamp. Built for the bench-pace work of a repair shop or a home workshop that services more than the occasional flat tire.

A repair stand is the workshop tool that determines whether everything else feels like work. With the bike at chest height, in a clamp that doesn't slip, the mechanic stands; without a stand, every adjustment is on the floor with the bike upside-down or leaning against a wall, and an hour-long service turns into a back-saving compromise. The repair stand is the foundational equipment; buy it before the chain tool, before the torque wrench, before anything that isn't a basic hex set.

Why the 1693B-US sits where it does in the lineup

The auto-adjustable clamp is the load-bearing convenience feature. Older repair stands require you to set the jaw opening manually before clamping; with the auto-adjustable version, you insert the seatpost or tube between the open jaws and close the handle; a spring sets the jaw opening, so you do not have to measure the tube first. For a shop that services many bikes a day, the auto-adjustment saves several minutes of cumulative setup time per shift.

The fixed base plate is the structural choice. A folding base saves shop space but introduces a flex point at the leg-to-base hinge; the fixed plate stays rigid under load. For a workshop with permanent floor space allocated to bench work, the fixed plate is the right trade-off.

Specs

• Maximum load: 30 kg (covers most road and gravel bikes; e-MTBs with full battery + motor may approach the limit)
• Clamp: auto-adjustable (1693.1), spring-set jaws for tubes 24–32 mm; close the handle to lock
• Base: fixed plate, ergonomically designed (726 × 572 mm)
• Stand weight: 36 kg; column height 985–1570 mm (1700 mm overall)
• Compatible accessory: replaceable rubber jaw covers (1693.11)
• SKU: 1693B-US (625011)

Built in Zreče, Slovenia

Unior has been forging hand tools in Zreče since 1919, and sponsors professional road and mountain-bike race teams. The 1693 stand line is the workshop foundation Unior's team-supported mechanics work on at races and at home shops; the Pro Repair Stand series spans single-arm, double-arm, electric-assist, and stationary variants, and the 1693B-US is the entry-pro tier in that family.

Pro tip from our mechanics

The 24–32 mm range is sized for traditional aluminum or steel seatposts and similarly sized tubes. Unior recommends considering a 1693.1S or 1693.1Q clamp for carbon or dropper seatposts. Some bike makers advise against clamping thin-walled carbon; check the manufacturer for the suggested clamp point, and clean the tube and jaws before clamping.

For the broader picture on what a home or shop mechanic should keep on the bench, including the stand alongside the wrenches: What bike tools do I need? →.

FAQ

What bikes will the 1693B-US hold? Unior rates the stand to 30 kg. The 1693.1 clamp takes tubes and seatposts from 24 to 32 mm and is intended for traditional aluminum or steel seatposts. For carbon or dropper posts Unior points you to a 1693.1S or 1693.1Q clamp instead. Some frame makers advise against clamping thin-walled carbon; check the bike manufacturer for the suggested clamp point.

How does the auto-adjustable clamp work? A spring sets the jaw opening. Insert the seatpost or tube between the open jaws and close the handle to lock. To release, hold the bike and flip the handle. Height is a separate lever on the column (985–1570 mm); a second lever lets the clamp head rotate.

What are the dimensions, and which spare parts fit? The stand weighs 36 kg. Column height is 985–1570 mm (1700 mm overall). The fixed plate is 726 × 572 mm. The wear part is the 1693.11 rubber jaw covers (two-piece set). Unior also lists a QR lever and a two-piece bushing set as family spares for 1693A/B/C.

How does the 1693B-US ship? It ships as oversized freight and is excluded from the free-shipping-over-$75 offer. Shipping is charged at carrier cost, calculated at checkout. If the rest of your cart would otherwise qualify for free shipping, order the stand as its own checkout so the smaller items can still take that rate.