Wheel and seat post locks??

[Rick Jacobs]

Hello. This is my first post. I sold my 400cc Burgman scooter, and I just bought a Stromer ST1 Platinum last week. The intent is to get more exercise by commuting to work 26 miles round trip. My concern is running errands on my way. I will alway use a good ABUS U-Lock on the rear tire and frame, but prefer something other than a cable for the seat, and front wheel.
There are several manufacturers of some pretty good security devices for wheels and seat posts.
Like: Pinhead and Abus NutFix

Unfortunately they don't seem to fit. The Stromer's have thru-axels on the front wheel so the special-locking skewers don't fit. Also, I can't find a seat clamp (locking) that fits the ST1's 38.7mm diameter seat tube. The max size is 34mm.

Can anyone offer any recommendations? How are all you Stromer-peops securing your seat and front wheel?

 

[Over50]

I've been dealing with this issue too although not for a Stromer (a Riese and Muller and a Haibike): My R&M Charger apparently has a 40 mm seat clamp (Kalloy SC-201 40 mm). I think however that Propel Bikes (Chris Nolte) replaced the clamp or the clamp bolt with one that has a proprietary key. I received the bike with a locking seat clamp (or rather with a proprietary hex key/bolt) and I'm not sure if it came with the clamp. Unfortunately I don't see a brand on the clamp. A few weeks back, I sent Chris at Propel an email to find out the brand because I wanted the same for my Haibike (but in 35mm) in order to have just one key. I haven't had a response as of yet and I might give them a ring soon to find out if they changed the clamp or just the bolt (and to get the brand). So I'd suggest maybe giving Propel a call to see if they can advise.

Since I couldn't find the brand for the clamp on my R&M, for my Haibike I ordered a 35 mm Fortified Bike clamp and also locking saddle bolts from Fortified Bike. I intend to get the same saddle bolts for my R&M soon. Unfortunately the key for the Fortified Bike clamp/bolts varies somewhat vs my R&M so I have 2 keys to keep track of. I don't think Fortified Bike has larger than 35 mm and it looks like that maybe the largest size available in the USA. It looks like 40 mm clamps maybe a Euro part not easily found here.

Currently when I park the R&M I am carrying two cables and cabling the seat rails and the front tire to my Ulock. On the Haibike, since I have the saddle bolts installed, I am only cabling the front wheel. With the thru-axles on these bikes I'm not optimistic that there will be a locking skewer that will work. On both my bikes, the thru-axle is probably the part I haven't managed to lock down. So yeah, if someone decides to grab it while I'm at work one day its a $60 replacement (not to mention a disabled bike). Hope you can find something and let us know what works.

 

[Rick Jacobs]

I have contacted PINHEAD.COM to see if they have a seat post clamp (locking) that will fit the 38.7mm of the ST1 seat tube.
Also, I noticed they do have a thru-axle security nut.

I'll post here when I hear back.
Does anyone know if there is a PDF manual available from Stromer, one that calls out dimension of fasteners, like the wheel thread and axel diameter and length?