Tire Choice > Chain Guard Clearance

[imported_n/a]

Shopping tires for '73 Jackpiner. WM3 rear rim, WM2 front. Have been pouring over posts here on POG site and I'm a bit confused by some of the info/contradictions. Here's my most pressing question: Can anyone tell me what size/brand rear tire they're using that is narrow enough indeed to clear the Chain Guard without having to trim the knobbies? So far, the closest I've come is a Kenda 400 x 18. I'm also shopping Pirelli MT-16 110/100 x 18", Duro HF335 4-10-18", and Michelin S-12 120/90 x 18". (Had a 350 x 18" Cheng Shin on a Six Day that worked but I hear they're no longer available). Thanks as always.  

Chris H.

[Cal Alexander]

I've had some success using the Pirellis and pulling the rim over slightly left of center when lacing the spokes to provide a bit more clearance for the chain guard. Prefer the Pirellis over the Duro and Cheng Shin brands as they look more true to the original Metzlers and wear a lot better. The Kenda would be my second choice.

[454MRW]

I'm not sure how they hold up for racing, but the Kenda K257D has the same tread pattern as the old Metzler's, and offer a 3.50-18 and a 4.10-18, as well as 4.50-18 for bigger bikes at very reasonable prices. Dennis Kirk is my preference, other than some deals on eBay. Mike

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Penton
1976 MC5 400
1978 KTM 78 GS6 250
L78-79 MX6 175-250 KTM's
1976-78 125-400 RM's
2007 CR125R Honda
1977 MC250 Maico
2017 KTM Freeride 250R