2018-2021 Thunderbolt Technical Info

2018-2021 Thunderbolt Parts Kits
Part Part Number Description Bearing Kit 1817017RMB 8 Enduro 6900 2RS Max bearings. Hardware Kit 1819037 Main pivot, linkage, chainstay to seat s...
Wed, 19 Aug, 2020 at 4:13 PM
Thunderbolt Maximum Seatpost Insertion
The dropper post length is dependent on a couple of factors; the first being your saddle height and the second being the maximum seatpost insertion depth wh...
Fri, 12 Jun, 2020 at 5:51 PM
Thunderbolt Sag Recommendation
Year Models Shock Stroke Sag Measurement Recommendation 2018 Carbon 30 Carbon 50 Carbon 70 50 mm 30%–35% sag 15–17.5 mm 2018 Carbon 90 BC Edit...
Thu, 24 Sep, 2020 at 2:29 PM
Thunderbolt Seatpost Diameter
The Thunderbolt uses a 30.9mm seat post.
Fri, 12 Jun, 2020 at 5:54 PM
Thunderbolt Seat Post Collar Size
The Thunderbolt uses a 34.9mm seat post collar.
Fri, 12 Jun, 2020 at 5:55 PM
Thunderbolt Front Derailleur Compatibility
The 2018-2020 Thunderbolt carbon and 2019-2020 alloy frames are not compatible with a front derailleur.
Thu, 20 Aug, 2020 at 12:42 PM
Thunderbolt Shock Size and Shock Hardware Size
The Thunderbolt uses a 210mm x 55mm (140mm travel) or a 210mm x 50mm (130mm travel). The forward shock hardware is a 25mm x 8mm ID pin and reducers, and th...
Fri, 12 Jun, 2020 at 5:56 PM
Thunderbolt Bash Guard Compatibility
The Instinct has the two lower ISCG05 tabs. These can be used to mount a two-bolt bash guard.
Thu, 20 Aug, 2020 at 12:43 PM
Thunderbolt Maximum Chainring Size
The maximum chainring size that’s compatible is a 36t. The maximum oval chainring size that’s compatible is a 34t. One thing to consider is that the Spirit ...
Fri, 12 Jun, 2020 at 5:57 PM
Thunderbolt Brake Mount Type and Maximum Rotor Size?
The Thunderbolt has 180mm post-mount brake mounts. It will fit up to a 200mm rotor with an adapter.
Fri, 12 Jun, 2020 at 5:58 PM