Working on a Kreidler: which tools you actually need
Published on 7 October 2026 · 2 min read
You need surprisingly little to work on a Kreidler. But a few special tools are essential, and that is exactly where things go wrong when people improvise.
The basics
- Open-ended and ring spanners, 8 to 19 mm. Kreidler is metric; most fasteners are 8, 10, 13 and 17.
- A socket set with ratchet, including a plug socket (usually 21 mm).
- Screwdrivers, flat and cross-head, in several sizes. Buy decent ones: a worn tip rounds off your screw heads.
- Combination pliers and water-pump pliers.
- A soft-faced hammer.
- A set of feeler gauges. For the contact breaker points and the plug gap.
- A multimeter. For anything electrical.
The special tools
This is what really matters. Three things cannot be improvised:
Flywheel puller. The flywheel sits on a taper and only comes off with a puller. Levering with screwdrivers bends the crankshaft — a mistake that costs hundreds. Pullers with the correct thread for Kreidler are available.
Crankcase splitter. For opening the engine without damaging the sealing face. Lever a screwdriver between the case halves and you will never get the engine oil-tight again.
Compression tester. Not strictly necessary, but it tells you in ten minutes whether your top end is still healthy.
Useful, not essential
- Plastic tyre levers, so you do not damage the rim edge.
- Bearing pullers, if you open the engine.
- A bench or lift — working on a machine standing on the floor ruins your back.
- Penetrating oil. Not a tool, but the product that most often decides between undoing a fastener and snapping it.
What not to do
An impact wrench on the flywheel nut. You damage the crankshaft bearings.
Water-pump pliers on chrome. Permanent damage in a single movement.
A slightly undersized spanner "that just fits". The quickest route to a rounded bolt head, and a rounded head costs you an hour.
Build the kit in the right order
Start with the basic set and the flywheel puller. That covers servicing, setting the ignition and fixing most faults. Buy the case splitter and bearing pullers only when you actually open the engine — by then you will know exactly which sizes you need.
Parts for this article
- KREIDLER Mat showroommat / werkplaats / oliemat 2x1mtr met naam ORANJE - €68.00
- KREIDLER Mat showroommat / werkplaats mat / oliemat 2x1mtr met naam WIT 4L opnamecapaciteit, lekt niet door op ondergrond. - €61.00
- VLIEGWIELTREKKER BOSCH/DUCATI 22/26x1.5 RECHTS - €11.00
- VLIEGWIELTREKKER BOSCH GROOT 26x1.5 RECHTS - €9.00
- KREIDLER Gereedschapsbakje Flory gereedschap kist - €20.00
- KREIDLER Gereedschapsbakje / gereedschapskast kist gereedschap nieuw model zwart 27.87.01 - €55.00